This study aims to learn more about **ventricular tachycardia (VT)**, a condition where the heart beats too fast due to electrical problems in the heart muscle, called the myocardium. Researchers want to find out which parts of the heart cause these issues by examining the heart's electrical signals. They will use a tool called the **MAP catheter** during a VT ablation, a treatment procedure, to study these signals without changing the usual treatment.

Key Points:

• The study is for people with ischemic cardiomyopathy (heart disease due to blocked blood vessels) who have an ICD (a device that helps regulate heartbeats).
• The study does not involve any additional risks beyond standard VT ablation procedures.
• Participation is not allowed if you have had a recent heart attack, cardiac arrest, or certain other heart conditions.