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01-11-2007 | Experimental

Sixty-four-slice CT in the assessment of global and regional left ventricular function: Comparison with MRI in a porcine model of acute and subacute myocardial infarction

Authors: H. Brodoefel, A. Reimann, B. Klumpp, M. Fenchel, M. Heuschmid, C. Burgstahler, S. Schroeder, S. Miller, C. D. Claussen, A. M. Scheule, A. F. Kopp

Published in: European Radiology | Issue 11/2007

Abstract

The purpose was to assess 64-slice CT in the analysis of global and regional ventricular function, using a model of acute and subacute myocardial infarction in comparison with cine-MRI. Seven pigs underwent standard MSCT and MRI examination a median 1 and 21 days following creation of reperfused myocardial infarction. Endocardial and epicardial contours were manually defined and ventricular volumes calculated according to Simpson’s method. Results were compared by Pearson’s correlation coefficient and Blant-Altman analysis. Wall motion was assessed on cine-images and evaluated by kappa statistics. MSCT revealed a strong correlation with cine-MRI regarding quantification of end-diastolic volume (EDV; r = 0.97), end-systolic volume (ESV; r = 0.97), stroke volume (SV; r = 0.94), ejection fraction (EF; r = 0.95) or myocardial mass (MM; r =0.94 ). Minor overestimation was observed for EDV and ESV (bias −1.7 ml; −1.5 ml; P=0.095; 0.025), whilst the mean difference for EF was found to be negligible (bias 0.9%; P = 0.18). Both modalities showed a 96.2% segmental agreement in regional wall motion (weighted-kappa 0.91 for 238 segments). This was true for both acute and subacute infarct phase and MSCT, and thereby enabled accurate intraindividual follow-up of segmental dysfunction. Sixty-four-slice CT allows for reliable analysis of global cardiac function and, moreover, provides accurate evaluation of wall motion in acute and subacute myocardial infarct.

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Title: Sixty-four-slice CT in the assessment of global and regional left ventricular function: Comparison with MRI in a porcine model of acute and subacute myocardial infarction
Authors: H. Brodoefel
A. Reimann
B. Klumpp
M. Fenchel
M. Heuschmid
C. Burgstahler
S. Schroeder
S. Miller
C. D. Claussen
A. M. Scheule
A. F. Kopp
Publication date: 01-11-2007
Publisher: Springer-Verlag
Published in: European Radiology / Issue 11/2007
Print ISSN: 0938-7994
Electronic ISSN: 1432-1084
DOI: https://doi.org/10.1007/s00330-007-0673-3

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Sixty-four-slice CT in the assessment of global and regional left ventricular function: Comparison with MRI in a porcine model of acute and subacute myocardial infarction

Abstract

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Abstract

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