Po-662-06 estimating qlv from the 12-lead ecg to support cardiac resynchronization therapy selection and implant procedures

CRT aims to resynchronize ventricular contraction using a right/left ventricle (RV/LV) pacemaker lead in heart failure patients. Positioning the LV lead in the latest electrically activated region, from Q wave-to-LV lead [QLV], is associated with favorable outcome. However, optimal LV lead placement is limited by coronary venous anatomy and the inability to measure QLV before implantation.