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Fig. 2B —Schematic visualization of measurement variability of ventricular wall thickening (inner numbers) and motion analysis (outer numbers) expressed as coefficients of variance based on CT (A) and MRI (B) ventricular short-axis imaging data sets. Patient is 72-year-old man with aortic valve disease; mean heart rate was 110 beats per minute. Note asterisks emphasizing areas with significant variation of automatically detected pericardial and myocardial borders at measurement repetitions. Asterisks aligned along pericardial-endothelial interface.