In this video, a cryoablation balloon is engaged in the right inferior pulmonary vein. It is inflated in preparation for cryoablation. Color Doppler is used to evaluate occlusion of the vein. In this instance, a small leak can be seen, and the balloon is deflated. Full article by Dr. Joseph Dell'Orfano available at www.eplabdigest.com/unleaded-ablations-starting-zero-fluoro-ablation-program.