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CT or invasive coronary angiography in stable chest pain

Autor: Maurovich-Horvat, Pál, Bosserdt, Maria, Kofoed, Klaus F., Rieckmann, Nina, Benedek, Theodora, Donnelly, Patrick, Rodriguez-Palomares, José, Erglis, Andrejs, Štěchovský, Cyril, Šakalyte, Gintare, Čemerlić Adić, Nada, Gutberlet, Matthias, Dodd, Jonathan D., Diez, Ignacio, Davis, Gershan, Zimmermann, Elke, Kępka, Cezary, Vidakovic, Radosav, Francone, Marco, Ilnicka-Suckiel, Małgorzata, Plank, Fabian, Knuuti, Juhani, Faria, Rita, Schröder, Stephen, Berry, Colin, Saba, Luca, Ruzsics, Balazs, Kubiak, Christine, Gutierrez-Ibarluzea, Iñaki, Schultz Hansen, Kristian, Müller-Nordhorn, Jacqueline, Merkely, Bela, Knudsen, Andreas D., Benedek, Imre, Orr, Clare, Xavier Valente, Filipa, Zvaigzne, Ligita, Suchánek, Vojtěch, Zajančkauskiene, Laura, Adić, Filip, Woinke, Michael, Hensey, Mark, Lecumberri, Iñigo, Thwaite, Erica, Laule, Michael, Kruk, Mariusz, Neskovic, Aleksandar N., Mancone, Massimo, Kuśmierz, Donata, Feuchtner, Gudrun, Pietilä, Mikko, Gama Ribeiro, Vasco, Drosch, Tanja, Delles, Christian, Matta, Gildo, Fisher, Michael, Szilveszter, Bálint, Larsen, Linnea, Ratiu, Mihaela, Kelly, Stephanie, Garcia del Blanco, Bruno, Rubio, Ainhoa, Drobni, Zsófia D., Jurlander, Birgit, Rodean, Ioana, Regan, Susan, Cuéllar Calabria, Hug, Boussoussou, Melinda, Engstrøm, Thomas, Hodas, Roxana, Napp, Adriane E., Haase, Robert, Feger, Sarah, Serna-Higuita, Lina M., Neumann, Konrad, Dreger, Henryk, Rief, Matthias, Wieske, Viktoria, Estrella, Melanie, Martus, Peter, Dewey, Marc

Background: \ud In the diagnosis of obstructive coronary artery disease (CAD), computed tomography (CT) is an accurate, noninvasive alternative to invasive coronary angiography (ICA). However, the comparative effectiveness of CT and ICA in the manage

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=core_ac_uk__::95380db8a6298034a6808908baeb2e0a
https://eprints.gla.ac.uk/267266/1/267266.pdf

Cost-effectiveness of point-of-care C-Reactive Protein test compared to current clinical practice as an intervention to improve antibiotic prescription in malaria-negative patients in Afghanistan.

Autor: Dickinson, Simon, Yi Chong, Huey, Leslie, Toby, Rowland, Mark, Schultz Hansen, Kristian, Boyers, Dwayne

Publikováno v: PLoS ONE; 11/8/2021, Vol. 16 Issue 11, p1-20, 20p

Quality Assessment of Economic Evaluations of Suicide and Self-Harm Interventions

Autor: Bustamante Madsen, Lizell, Eddleston, Michael, Schultz Hansen, Kristian, Konradsen, Flemming

Publikováno v: Crisis: The Journal of Crisis Intervention and Suicide Prevention; 2018, Vol. 39 Issue: 2 p82-95, 14p

CT or Invasive Coronary Angiography in Stable Chest Pain.

Autor: Maurovich-Horvat P; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Bosserdt M; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Kofoed KF; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Rieckmann N; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Benedek T; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Donnelly P; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Rodriguez-Palomares J; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Erglis A; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Štěchovský C; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Šakalyte G; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Čemerlić Adić N; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Gutberlet M; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Dodd JD; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Diez I; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Davis G; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Zimmermann E; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Kępka C; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Vidakovic R; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Francone M; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Ilnicka-Suckiel M; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Plank F; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Knuuti J; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Faria R; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Schröder S; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Berry C; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Saba L; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Ruzsics B; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Kubiak C; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Gutierrez-Ibarluzea I; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Schultz Hansen K; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Müller-Nordhorn J; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Merkely B; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Knudsen AD; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Benedek I; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Orr C; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Xavier Valente F; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Zvaigzne L; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Suchánek V; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Zajančkauskiene L; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Adić F; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Woinke M; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Hensey M; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Lecumberri I; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Thwaite E; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Laule M; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Kruk M; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Neskovic AN; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Mancone M; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Kuśmierz D; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Feuchtner G; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Pietilä M; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Gama Ribeiro V; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Drosch T; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Delles C; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Matta G; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Fisher M; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Szilveszter B; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Larsen L; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Ratiu M; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Kelly S; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Garcia Del Blanco B; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Rubio A; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Drobni ZD; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Jurlander B; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Rodean I; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Regan S; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Cuéllar Calabria H; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Boussoussou M; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Engstrøm T; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Hodas R; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Napp AE; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Haase R; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Feger S; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Serna-Higuita LM; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Neumann K; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Dreger H; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Rief M; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Wieske V; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Estrella M; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Martus P; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak)., Dewey M; The authors' affiliations are as follows: the Heart and Vascular Center (P.M.-H., B.M., B.S., Z.D.D., M. Boussoussou) and the Department of Radiology, Medical Imaging Center (P.M.-H.), Semmelweis University, Budapest, Hungary; the Departments of Radiology (M. Bosserdt, E.Z., A.E.N., R. Haase, S.F., M. Rief, V.W., M.E., M.D.) and Cardiology and Angiology (M.L., H.D.), the Institute of Public Health (N.R., J.M.-N.), and the Institute of Biometry and Clinical Epidemiology (K.N.), Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin and DZHK (German Center for Cardiovascular Research) Partner Site Berlin (H.D., M.D.), Berlin Institute of Health and Berlin University Alliance (M.D.), Berlin, the Departments of Radiology (M.G.) and Cardiology (M.W.), University of Leipzig Heart Center, Leipzig, the Department of Cardiology, Alb Fils Kliniken, Göppingen (S.S., T.D.), the Bavarian Cancer Registry, Bavarian Health and Food Safety Authority, Munich (J.M.-N.), and the Department of Clinical Epidemiology and Applied Biostatistics, Universitätsklinikum Tübingen, Tübingen (L.M.S.-H., P.M.) - all in Germany; the Departments of Cardiology (K.F.K., A.D.K., T.E.) and Radiology (K.F.K., A.D.K.), Rigshospitalet, and the Department of Clinical Medicine, Faculty of Health and Medical Sciences (K.F.K., A.D.K., T.E., L.L., B.J.), and the Department of Public Health, Section for Health Services Research (K.S.H.), University of Copenhagen, Copenhagen, the Department of Cardiology, Herlev-Gentofte Hospital, Hellerup (L.L.), and the Department of Cardiology, Nordsjaellands Hospital, Hillerod (B.J.) - all in Denmark; the Department of Internal Medicine, Clinic of Cardiology (T.B., R. Hodas), and the Department of Radiology and Medical Imaging (M. Ratiu), George Emil Palade University of Medicine, Pharmacy, Science, and Technology, County Clinical Emergency Hospital Targu Mures (T.B.), and the Center of Advanced Research in Multimodality Cardiac Imaging, CardioMed Medical Center (I.B., I.R.) - all in Targu Mures, Romania; the Department of Cardiology, Southeastern Health and Social Care Trust, Belfast (P.D., C.O., S.K., S.R.), the Departments of Cardiology (G.D.) and Radiology (E.T.), Aintree University Hospital, the Department of Cardiology, Royal Liverpool University Hospital and the Institute for Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital (B.R., M. Fisher), and the Faculty of Health and Life Sciences, University of Liverpool (M. Fisher), Liverpool, Edge Hill University, Ormskirk (G.D.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (C.B., C.D.), and Golden Jubilee National Hospital, Clydebank (C.B.) - all in the United Kingdom; the Departments of Cardiology (J.R.-P., F.X.V., B.G.B.) and Radiology (H.C.C.), Hospital Universitario Vall d'Hebron, Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Centro de Investigación Biomédica en Red, Madrid (J.R.-P., F.X.V., B.G.B.), the Departments of Cardiology (I.D., A.R.) and Radiology (I.L.), Basurto Hospital, Bilbao, Basque Foundation for Health Innovation and Research, Barakaldo, and the Basque Office for Health Technology Assessment, Vitoria-Gasteiz (I.G.-I.) - all in Spain; the Departments of Cardiology (A.E.) and Radiology (L. Zvaigzne), Paul Stradins Clinical University Hospital, and the University of Latvia (A.E.) - both in Riga, Latvia; the Departments of Cardiology (C.Š.) and Imaging Methods (V.S.), Motol University Hospital, Prague, Czech Republic; the Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, and the Department of Cardiology, Hospital of Lithuanian University of Health Sciences (G.Š., L. Zajančkauskiene) - both in Kaunas, Lithuania; the Faculty of Medicine, University of Novi Sad, and the Department of Cardiology, Institute for Cardiovascular Diseases of Vojvodina, Novi Sad (N.Č.A., F.A.), and the Department of Cardiology, Internal Medicine Clinic, Clinical Hospital Center Zemun, and the Faculty of Medicine, University of Belgrade, Belgrade (R.V., A.N.N.) - all in Serbia; the Departments of Radiology (J.D.D.) and Cardiology (M.H.), St. Vincent's University Hospital and School of Medicine, University College Dublin (J.D.D.), Dublin; the National Institute of Cardiology, Warsaw (C. Kępka, M.K.), and the Departments of Cardiology (M.I.-S.) and Radiology (D.K.), Provincial Specialist Hospital in Wroclaw, Wroclaw - both in Poland; the Department of Clinical Internal, Anesthesiologic, and Cardiovascular Sciences, Sapienza University of Rome, Rome (M.M.), the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital (M. Francone), Milan, and the Department of Radiology, University of Cagliari (L.S.), and the Department of Radiology, Azienda Ospedaliera Brotzu (G.M.), Cagliari - all in Italy; the Department of Internal Medicine III, the Department of Cardiology (F.P.), and the Department of Radiology (G.F.), Innsbruck Medical University, Innsbruck, Austria; the Turku PET Center (J.K.) and Heart Center (M.P.), Turku University Hospital and University of Turku, and the Administrative Center, Health Care District of Southwestern Finland (M.P.) - all in Turku, Finland; the Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia-Espinho, Vila Nova de Gaia, Portugal (R.F., V.G.R.); and the European Clinical Research Infrastructure Network-European Research Infrastructure Consortium, Paris (C. Kubiak).

Publikováno v: The New England journal of medicine [N Engl J Med] 2022 Apr 28; Vol. 386 (17), pp. 1591-1602. Date of Electronic Publication: 2022 Mar 04.