Despite the numerous documented benefits of cardiac resynchronization therapy (CRT), a
significant proportion of patients undergoing CRT do not demonstrate symptomatic or …

Background Many patients with electrical dyssynchrony who undergo cardiac
resynchronization therapy (CRT) do not obtain substantial benefit. Assessing mechanical …

Objectives: We tested a circumferential mechanical dyssynchrony index (circumferential
uniformity ratio estimate [CURE]; 0 to 1, 1= synchrony) derived from magnetic resonance …

Cardiac resynchronization therapy (CRT) is an established therapy for patients with
advanced heart failure, depressed left ventricular function, and wide QRS complex …

Background The systolic dyssynchrony index (SDI) has been introduced as a measure of
mechanical dyssynchrony using three-dimensional echocardiography to select patients who …

Objectives: We aimed to assess a novel measure of left ventricular (LV) dyssynchrony, a
cardiovascular magnetic resonance-tissue synchronization index (CMR-TSI), in patients with …

Cardiac resynchronization therapy (CRT) has shown benefits in patients with end-stage
heart failure (HF)(NYHA class III or IV), depressed left ventricular (LV) ejection fraction, and …

Introduction: Cardiac resynchronization therapy (CRT) is now an established
nonpharmacologic therapy for advanced heart failure with electromechanical delay. Despite …

Myocardial imaging has been successfully applied to the evaluation of patients with heart
failure, particularly identifying candidates who are likely to respond to cardiac …

Objectives: We sought to determine the feasibility of cardiac computed tomography (CT) to
detect significant differences in the extent of left ventricular dyssynchrony in heart failure …