Reproducibility of Chronic and Acute Infarct Size Measurement by Delayed Enhancement-Magnetic Resonance Imaging
Holger Thiele, MD*,*,
Mathias J.E. Kappl, MD*,
Stefan Conradi, MD ,
Josef Niebauer, MD, PhD*,
Rainer Hambrecht, MD* and
Gerhard Schuler, MD*
* Cardiology
Radiology, University of Leipzig-Heart Center, Leipzig, Germany

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Figure 1 Short axis slice showing the endocardial (green), epicardial (yellow), papillary (blue), and infarcted contours (white) in a patient with inferior myocardial infarction.
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Figure 2 Bland-Altman reproducibility analysis for the overall patient population. Central horizontal dotted line = mean absolute difference or bias; upper and lower lines = 95% confidence intervals (limits of agreement); black diamonds = acute myocardial infarction (MI); white diamonds = chronic MI. IS = infarct size; %LV = percentage of LV volume.
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Figure 3 Bland-Altman analysis for intraobserver (A) and interobserver (B) variability. Central horizontal dotted line = mean absolute difference or bias; upper and lower lines = 95% confidence intervals (limits of agreement); diamonds = myocardial infarction (MI). Abbreviations as in Figure 2.
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