Figure 1. Antral isolation of the left and right pulmonary veins guided by intracardiac echocardiography. Panel A: Lasso catheter was placed in the left common ostium between the left inferior and superior pulmonary vein (white arrow). Panel B: Ablation catheter (white arrow) is touching the right venous carina next to the right inferior pulmonary vein. LSPV: left superior pulmonary vein, LIPV: left inferior pulmonary vein, RIPV: right inferior pulmonary vein, Sept: interatrial septum. Images are originating from the database of Szeged University.