Late QRS Activity in Signal‐Averaged Magnetocardiography Body Surface Potential Mapping and Orthogonal ECG in Postinfarction Ventricular Tachycardia Patients

摘要

Delayed electrical activity necessary for re‐entrant ventricular tachycardia (VT) is detectable noninvasively with high resolution techniques. We compared high resolution signalaveraged analysis of magnetocardiography (MCG), body surface potential mapping (BSPM), and orthogonal three‐lead ECG (SA‐ECG) in the identification of patients prone to VT after myocardial infarction (Ml).