Ventricular tachycardia (VT) is a potentially life-threatening complication in postacute myocardial infarction (AMI) patients that can appear months or years after the index event.1 Although advancements in catheter ablation techniques have been made in recent years, the outcomes still are suboptimal, with a high long-term rate of relapse.1 Radiofrequency ablation (RFA) currently is the main energy used for these procedures. However, some histologic studies showed that the ability of RFA to form deep lesions is compromised in areas of scar tissue.