Figure 3. Wall thickness index % (WTI%) before and after ablation: comparison among different ablation energies for Pulmonary Vein Isolation (PVI).
Figure 4. ICE image of ostium of same right inferior pulmonary vein, before (left panel) and after cryoablation (right panel). The white arrow indicates acute tissue thickening suggestive of oedema, while the white asterisks indicate a dissection flap.