The Role of Cardiovascular Magnetic Resonance in Cardiac Resynchronization Therapy
1Aston Medical Research Institute, Aston Medical School, Aston University, Aston Triangle, Birmingham, B4 7ET, UK; Department of Cardiology, University Hospital Birmingham Queen Elizabeth, Mindelsohn Way, Edgbaston, Birmingham, B15 2WB, UK.
Abstract:
Randomized, controlled trials have shown that cardiac resynchronization therapy (CRT) is beneficial in patients with heart failure, impaired left ventricular (LV) systolic function, and a wide QRS complex. Other studies have shown that targeting the LV pacing site can also improve patient outcomes. Cardiovascular magnetic resonance (CMR) is a radiation-free imaging modality that provides unparalleled spatial resolution. In addition, emerging data suggest that targeted LV lead deployment over viable myocardium improves the outcome of patients undergoing CRT. This review explores the role of CMR in the preoperative workup of patients undergoing CRT.
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