Relation between three-dimensional echocardiography derived left ventricular volume and MRI derived circumferential strain in patients eligible for cardiac resynchronization therapy

Objectives To compare regional left ventricular (LV) volume curves obtained with real time three-dimensional echocardiography (RT3DE) with two-dimensional circumferential strain curves obtained by MRI in cardiac resynchronization therapy candidates. Background Several methods using either ultrasound or MRI are used to quantify mechanical dyssynchrony (MD). Theoretically, LV volume and circumferential strain seem related, since both measures are...