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Fig. 4A —68-year-old man with three-vessel coronary artery disease and inferolateral myocardial infarction. Diastolic (A–C) and systolic (D–F) CT image reformations show reduced diastolic wall thickness and absence of systolic wall thickening of inferior and inferolateral walls of left ventricle. Left ventricular volumes and ejection fraction determined with 3D threshold segmentation algorithm (A, B, D, E) and 2D short axis–based planimetry (Simpson method) (C, F) show comparable results.