Výsledky vyhledávání - "Bettina M, Gramer"

Akademický článek

256-slice CT angiographic evaluation of coronary artery bypass grafts: effect of heart rate, heart rate variability and Z-axis location on image quality.

Autor: Bettina M Gramer, Patricia Diez Martinez, Anne S Chin, Marie-Pierre Sylvestre, Sandra Larrivée, Louis-Mathieu Stevens, Nicolas Noiseux, Gilles Soulez, Ernst J Rummeny, Carl Chartrand-Lefebvre

Publikováno v: PLoS ONE, Vol 9, Iss 3, p e91861 (2014)

The objective of this study is to assess the effect of heart rate, heart rate variability and z-axis location on coronary artery bypass graft (CABG) image quality using a 256-slice computed tomography (CT) scanner.A total of 78 patients with 254 CABG

Externí odkaz: https://doaj.org/article/25528e1e7a9b4103ac6cf7347cef0172

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Myocardium: Dynamic versus Single-Shot CT Perfusion Imaging

Autor: Mani Vembar, Alexander W. Leber, Johannes Rieber, Ellen Hoffmann, Daniela Muenzel, V Leber, Armin Huber, Ernst J. Rummeny, Bettina M. Gramer, Martin Schmidt

Publikováno v: Radiology. 269:378-386

The assessment of CT perfusion images of the myocardium at one time point; the best dynamic semiquantitative parameter, upslope; and the quantitative parameter myocardial blood flow showed similar high diagnostic accuracy without significant differen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::21c4a68b8b0b5812dd7eed5cc12c9478
https://doi.org/10.1148/radiol.13121441

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Prognostic implications of coronary CT angiography-derived quantitative markers for the prediction of major adverse cardiac events

Autor: Taylor M. Duguay, Salvatore A. Chiaramida, Bettina M. Gramer, Fabian Plank, Christian Tesche, U. Joseph Schoepf, Akos Varga-Szemes, Carlo N. De Cecco, Ellen Hoffmann, Ullrich Ebersberger, Moritz H. Albrecht, Junjie Yang, Gudrun Feuchtner, Isaac L. Jacks, Richard R. Bayer

Publikováno v: Journal of cardiovascular computed tomography. 10(6)

Objective To evaluate quantitative markers derived from coronary CT angiography (coronary CTA) for the prediction of major adverse cardiac events (MACE). Materials and methods Pooled data from two centers in the US and Europe were retrospectively ana

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2a9435b933564b2d2685aba260d38f59
https://pubmed.ncbi.nlm.nih.gov/27522574

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Impact of iterative reconstruction on CNR and SNR in dynamic myocardial perfusion imaging in an animal model

Autor: Mani Vembar, Armin Schneider, V Leber, A.-K. von Thaden, Ernst J. Rummeny, Armin Huber, N. Soni, Bettina M. Gramer, Hubertus Feussner, Daniela Muenzel

Publikováno v: European Radiology. 22:2654-2661

To evaluate a new iterative reconstruction (IR) algorithm for radiation dose, image quality (IQ), signal-to-noise-ratio (SNR), and contrast-to-noise-ratio (CNR) in multidetector computed tomography (MDCT) dynamic myocardial perfusion imaging (MPI). E

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c3343fd3083deece1b6a7addc7139ccc
https://doi.org/10.1007/s00330-012-2525-z

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Dynamic first pass CT perfusion imaging of the myocardium vs. intracoronary transluminal attenuation gradient in coronary CT angiography for the assessment of coronary artery stenosis

Autor: Michael Rasper, Bettina M. Gramer, Ellen Hoffmann, Alexander Leber, Ernst J. Rummeny, Johannes Rieber, Armin Huber, Isabella D. Baur

Publikováno v: Journal of Cardiovascular Computed Tomography. 10:e11-e12

Poster: "ECR 2015 / B-0754 / Dynamic first pass CT perfusion imaging of the myocardium vs. intracoronary transluminal attenuation gradient in coronary CT angiography for the assessment of coronary artery stenosis" by: "B. M. Gramer1, I. D. Baur1, M.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::961f48ee66b2475c858a62378242d92b
https://doi.org/10.1016/j.jcct.2015.12.031

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Dual-source RF transmission in cardiac SSFP imaging at 3 T: systematic spatial evaluation of image quality improvement compared to conventional RF transmission

Autor: Marcus Settles, Michael Rasper, Armin Huber, Karl-Ludwig Laugwitz, Tareq Ibrahim, Ernst J. Rummeny, Bettina M. Gramer

Publikováno v: Clinical imaging. 39(2)

The purpose of this investigation was to systematically evaluate the spatial distribution of image quality improvement with dual-source radiofrequency (RF) transmission in cardiac steady-state free precession sequences at 3.0 T. Imaging with and with

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fcc825d668f45c01dc588aed9c06dbad
https://pubmed.ncbi.nlm.nih.gov/25481220

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256-Slice CT Angiographic Evaluation of Coronary Artery Bypass Grafts: Effect of Heart Rate, Heart Rate Variability and Z-Axis Location on Image Quality

Autor: Marie-Pierre Sylvestre, Ernst J. Rummeny, Gilles Soulez, Louis-Mathieu Stevens, Carl Chartrand-Lefebvre, Sandra Larrivée, Anne S Chin, Bettina M. Gramer, Patricia Diez Martinez, Nicolas Noiseux

Publikováno v: PLoS ONE
PLoS ONE, Vol 9, Iss 3, p e91861 (2014)

Purpose The objective of this study is to assess the effect of heart rate, heart rate variability and z-axis location on coronary artery bypass graft (CABG) image quality using a 256-slice computed tomography (CT) scanner. Methods A total of 78 patie

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ea3f8a412f8d1e0965e472c16deb201
http://europepmc.org/articles/PMC3956757

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