PPI Representative for a Trial Management Group (TMG) for a research study. The study aims to improve the identification of the diseased heart areas responsible for abnormal, fast heart rhythm called ventricular tachycardia (VT), using a novel method prior to patients undergoing catheter ablation. People who have undergone catheter ablation or know someone who has, may find this very interesting. Providing their feedback during TMG meetings, every 2-3 months on MS teams.