FIGURE 1. Relationship between short-axis tomographic segments and coronary arterial territories (A) and schema of 9 segments of left ventricle on 3-dimensional cine-mode display created with automatic left ventricular function analysis software program for ECG-gated myocardial perfusion SPECT (B). Reversible perfusion defects and worsening of wall motion in anterior, septal, and apical segments represented disease in left anterior descending artery (LAD), those in inferior segments represented disease in right coronary artery (RCA), and those in lateral segments represented disease in left circumflex artery (LCX). 1 = basal anterior; 2 = middle anterior; 3 = apex; 4 = middle inferior; 5 = basal inferior; 6b = basal septum; 6m = middle septum; 7b = basal lateral; 7m = middle lateral.
