Published in:
01-04-2013 | Cardiac Magnetic Resonance (E Nagel, Section Editor)
Noninvasive Assessment of Myocardial Dyssynchrony Prior to Cardiac Resynchronization Therapy
Authors:
Manav Sohal, Sana Amraoui, C. Aldo Rinaldi
Published in:
Current Cardiovascular Imaging Reports
|
Issue 2/2013
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Abstract
Cardiac resynchronization therapy (CRT) has proven to be of benefit in patients with heart failure and evidence of dyssynchrony. QRS duration is the most widely applied measure of dyssynchrony but this is accepted to be an imperfect measure. There has been much focus on the use of imaging, particularly echocardiography, in identifying mechanical dyssynchrony but results from multi-center studies have proved disappointing. Cardiac magnetic resonance (CMR) imaging has inherent advantages over echocardiography in terms of image resolution and there have been several studies looking at the use of both simple and complex CMR measures as markers of dyssynchrony. In this review, we describe the advances in CMR assessment of dyssynchrony.