Journal Article

Strain rate imaging in CRT candidates

Ole A. Breithardt, Lieven Herbots, Jan D'Hooge, Piet Claus, Bart Bijnens, Christoph Stellbrink, Andreas Franke and George R. Sutherland

in European Heart Journal Supplements

Published on behalf of European Society of Cardiology

Volume 6, issue suppl_D, pages D16-D24
Published in print August 2004 | ISSN: 1520-765X
Published online August 2004 | e-ISSN: 1554-2815 | DOI: http://dx.doi.org/10.1016/j.ehjsup.2004.05.007
Strain rate imaging in CRT candidates

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The recent introduction of cardiac resynchronization therapy (CRT) revived the interest how to evaluate asynchrony. Doppler myocardial imaging (DMI) allows quantification of both regional myocardial motion and deformation with adequate temporal resolution and has been suggested as a method of patient selection for CRT. Timing analysis of regional myocardial motion can identify heart failure patients with left ventricular asynchrony and has been shown to be of prognostic value in CRT patients. However, myocardial motion may be passive due to tethering effects. Strain rate imaging measures the timing and extent of myocardial deformation and provides more reliable information about the sequence of myocardial contraction in the presence of delayed electrical activation. The advantages and pitfalls of the different DMI techniques are discussed.

Keywords: Echocardiography; Pacing; Strain rate imaging; Heart failure; Cardiac resynchronization therapy

Journal Article.  5119 words.  Illustrated.

Subjects: Cardiovascular Medicine

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