Fig. 2. Anatomical model of the transgastric basal and apical short-axis views. (A ) Right ventricular wall segments. (B ) Five basal segments: BA = basal anterior; BAS = basal anteroseptal; BI = basal inferior; BIS = basal inferoseptal; BL = basal lateral. (C ) Four apical segments: AA = apical anterior; AI = apical inferior; AL = apical lateral; AS = apical septal. Reprinted with permission from netterimages.com.