Zobrazeno 1 - 10
of 237
pro vyhledávání: '"Akos Varga‐Szemes"'
Autor:
Dmitrij Kravchenko, Chiara Gnasso, U. Joseph Schoepf, Milan Vecsey-Nagy, Giuseppe Tremamunno, Jim O’Doherty, Andrew Zhang, Julian A. Luetkens, Daniel Kuetting, Ulrike Attenberger, Bernhard Schmidt, Akos Varga-Szemes, Tilman Emrich
Publikováno v:
European Radiology Experimental, Vol 8, Iss 1, Pp 1-10 (2024)
Abstract Background Coronary computed tomography angiography (CCTA) offers non-invasive diagnostics of the coronary arteries. Vessel evaluation requires the administration of intravenous contrast. The purpose of this study was to evaluate the utility
Externí odkaz:
https://doaj.org/article/bf6f28e3ce7e44389c4349560a2746c6
Autor:
Giuseppe Tremamunno, Akos Varga-Szemes, U. Joseph Schoepf, Andrea Laghi, Emese Zsarnoczay, Nicola Fink, Gilberto J. Aquino, Jim O’Doherty, Tilman Emrich, Milan Vecsey-Nagy
Publikováno v:
European Radiology Experimental, Vol 8, Iss 1, Pp 1-11 (2024)
Abstract Background Radiomics is not yet used in clinical practice due to concerns regarding its susceptibility to technical factors. We aimed to assess the stability and interscan and interreader reproducibility of myocardial radiomic features betwe
Externí odkaz:
https://doaj.org/article/016197d8d9e6475db86928ad977e289b
Autor:
Emese Zsarnoczay, Nicola Fink, U. Joseph Schoepf, Daniel Pinos, Jim O’Doherty, Thomas Allmendinger, Junia Hagenauer, Joseph P. Griffith III, Milán Vecsey-Nagy, Pál Maurovich-Horvat, Tilman Emrich, Akos Varga-Szemes
Publikováno v:
European Radiology Experimental, Vol 8, Iss 1, Pp 1-10 (2024)
Abstract Background We compared ultra-high resolution (UHR), standard resolution (SR), and virtual non-calcium (VNCa) reconstruction for coronary artery stenosis evaluation using photon-counting computed tomography (PC-CT). Methods One vessel phantom
Externí odkaz:
https://doaj.org/article/6eff730765c64eae8ae1cbfab68ebbb3
Autor:
Dirk Graafen, Willi Bart, Moritz C. Halfmann, Lukas Müller, Lukas Hobohm, Yang Yang, Achim Neufang, Christine Espinola-Klein, Michael B. Pitton, Roman Kloeckner, Akos Varga-Szemes, Tilman Emrich
Publikováno v:
European Radiology Experimental, Vol 8, Iss 1, Pp 1-14 (2024)
Abstract Background Lower extremity peripheral artery disease frequently presents with calcifications which reduces the accuracy of computed tomography (CT) angiography, especially below-the-knee. Photon-counting detector (PCD)-CT offers improved spa
Externí odkaz:
https://doaj.org/article/8afa76a007d34c7c8ae8588f68623c04
Autor:
Chiara Gnasso, Daniel Pinos, U. Joseph Schoepf, Milan Vecsey-Nagy, Gilberto J. Aquino, Nicola Fink, Emese Zsarnoczay, Robert J. Holtackers, Jonathan Stock, Pal Suranyi, Akos Varga-Szemes, Tilman Emrich
Publikováno v:
European Radiology Experimental, Vol 8, Iss 1, Pp 1-10 (2024)
Abstract Background The potential role of cardiac computed tomography (CT) has increasingly been demonstrated for the assessment of diffuse myocardial fibrosis through the quantification of extracellular volume (ECV). Photon-counting detector (PCD)-C
Externí odkaz:
https://doaj.org/article/2782fa3390c8459ba9a82c430b74ca7c
Autor:
Elias V. Wolf, Lukas Müller, U. Joseph Schoepf, Nicola Fink, Joseph P. Griffith, Emese Zsarnoczay, Dhiraj Baruah, Pal Suranyi, Ismael M. Kabakus, Moritz C. Halfmann, Tilman Emrich, Akos Varga-Szemes, Jim O‘Doherty
Publikováno v:
European Radiology Experimental, Vol 7, Iss 1, Pp 1-11 (2023)
Abstract Background Photon-counting detector computed tomography (PCD-CT) may influence imaging characteristics for various clinical conditions due to higher signal and contrast-to-noise ratio in virtual monoenergetic images (VMI). Radiomics analysis
Externí odkaz:
https://doaj.org/article/2aebc34caebd41ad97fd33d7f6bf61af
Autor:
Moritz C. Halfmann, Lukas Müller, Urs von Henning, Roman Kloeckner, Theresia Schöler, Karl-Friedrich Kreitner, Christoph Düber, Philip Wenzel, Akos Varga-Szemes, Sebastian Göbel, Tilman Emrich
Publikováno v:
Journal of Cardiovascular Magnetic Resonance, Vol 25, Iss 1, Pp 1-12 (2023)
Abstract Background MRI T2 mapping has been proven to be sensitive to the level of blood oxygenation. We hypothesized that impaired exercise capacity in chronic heart failure is associated with a greater difference between right (RV) to left ventricu
Externí odkaz:
https://doaj.org/article/54779995e9f24cc0b898adfcfabefe5c
Autor:
Nicola Fink, Basel Yacoub, U. Joseph Schoepf, Emese Zsarnoczay, Daniel Pinos, Milan Vecsey-Nagy, Saikiran Rapaka, Puneet Sharma, Jim O’Doherty, Jens Ricke, Akos Varga-Szemes, Tilman Emrich
Publikováno v:
Diagnostics, Vol 14, Iss 9, p 866 (2024)
This study evaluated a deep neural network (DNN) algorithm for automated aortic diameter quantification and aortic dissection detection in chest computed tomography (CT). A total of 100 patients (median age: 67.0 [interquartile range 55.3/73.0] years
Externí odkaz:
https://doaj.org/article/8350695c16084341bc70066df1bc8875
Autor:
Elias V. Wolf, Moritz C. Halfmann, U. Joseph Schoepf, Emese Zsarnoczay, Nicola Fink, Joseph P. Griffith, Gilberto J. Aquino, Martin J. Willemink, Jim O’Doherty, Michaela M. Hell, Pal Suranyi, Ismael M. Kabakus, Dhiraj Baruah, Akos Varga-Szemes, Tilman Emrich
Publikováno v:
Frontiers in Cardiovascular Medicine, Vol 9 (2023)
PurposeTo compare coronary artery calcium volume and score (CACS) between photon-counting detector (PCD) and conventional energy integrating detector (EID) computed tomography (CT) in a phantom and prospective patient study.MethodsA commercially avai
Externí odkaz:
https://doaj.org/article/fee9d4522ff4490e9f0a99708932f272
Autor:
Martin J. Willemink, Akos Varga-Szemes, U. Joseph Schoepf, Marina Codari, Koen Nieman, Dominik Fleischmann, Domenico Mastrodicasa
Publikováno v:
European Radiology Experimental, Vol 5, Iss 1, Pp 1-14 (2021)
Abstract After an ischemic event, disruptive changes in the healthy myocardium may gradually develop and may ultimately turn into fibrotic scar. While these structural changes have been described by conventional imaging modalities mostly on a macrosc
Externí odkaz:
https://doaj.org/article/29fca92b525d42ff84bb628d309e88fc