FIGURE 1.  Number and location of myocardial perfusion defects in RT group (A) and NRT group (B) in patients with distal esophageal cancer. Sep = septal; Ant/Sep = anteroseptal; Inf = inferior; Inf/Ap = inferoapical; Inf/Sep = inferoseptal; Inf/lat = inferolateral; Lat = lateral; Ant = anterior.