ACUTE POSTPROCEDURAL RADIOFREQUENCY LESION ASSESSMENT WITH MAGNETIC RESONANCE IMAGING AFTER ABLATION OF ARRHYTHMIAS ARISING FROM THE LEFT VENTRICULAR SUMMIT: CHARACTERIZATION OF TRANSMURAL PENETRATION

Abstract

Ablation of ventricular arrhythmias arising from the LV summit is challenging. The relationship of lesion depth to myocardial thickness has not been systematically evaluated. Contrast enhanced MR scans were performed within 24 hours of open-irrigated ablation. A 1.5T MR scanner (Siemens Avanto,