Efficiency, Safety, and Efficacy of High-Power Short-Duration Radiofrequency Ablation in Patients with Atrial Fibrillation

Figure 1

Comparison between HPSD approach and CAT. Lesion dimensions of radiofrequency ablation and heating distribution in myocardial tissue are demonstrated. HPSD approach and CAT could create comparable lesion size. HPSD approach results in an ablation lesion that is heated directly from the catheter during the resistive phase (red part), while, in CAT, myocardial tissue is largely heated because of conductive heating (golden yellow part).