Fig. 4From: Catheter ablation of outflow tract ventricular arrhythmia with intracardiac echocardiography assistanceAssessment of effective lesion formation using intracardiac echocardiography. A. Before ablation. B. During ablation at RCC-LCC junction (dashed line). Increased echogenicity was observed during ablation compared with before ablation. R-L, right coronary cusp-left coronary cusp; Abl, ablation catheterBack to article page