(left) triple vessel PLA perfusion, (middle) LSNA dominant PLA perfusion, (right) Balanced double vessel PLA perfusion. Black solid line delineates regional perfusion territories. RSNA; right sinus node artery, LSNA; left sinus node artery, RSPV; right superior pulmonary vein, RIPV; right inferior pulmonary vein, LSPV; left superior pulmonary vein, LIPV; left inferior pulmonary vein. (Adapted from Yamazaki M et al. Left atrial coronary perfusion territories in isolated sheep hearts Heart Rhythm 2010;7:1501-1508 with permission from Elsevier)