Successful catheter ablation above aortic sinus cusp approach eliminating the ventricular arrhythmia arising from the myocardial crescent beneath the interleaflet triangle : LGE-MRI assessment

A 61-year-old female with 50000 ventricular premature contractions and reduced left ventricular ejection fraction of 35% referred to our center. Although the origin was considered to be originated from the junction between the left and right coronary cusp, a single radiofrequency application above the aortic sinus cusp could eliminate it.