FIGURE 1. Example of MRI slices acquired at end-diastole for healthy volunteer with application of point-positioning software. Epicardial and endocardial borders of left ventricular walls are directed (blue marks) along radial and parallel lines (yellow lines), midwall points being then automatically positioned. For each segment, wall curvature (schematized by red arrows) was determined using coordinates of 3 adjacent midwall points on both orthogonal slices that were used to analyze segment. The 13 left ventricular segments are anterobasal (1), laterobasal (2), inferobasal (3), septobasal (4), anteromedial (5), lateromedial (6), inferomedial (7), septomedial (8), anteroapical (9), lateroapical (10), inferoapical (11), septoapical (12), and apical (13). LA = left atrium; LV = left ventricle; RA = right atrium; RV = right ventricle.
