alexa Magnetic resonance imaging assessment of ventricular dyssynchrony: current and emerging concepts.


Journal of Clinical & Experimental Cardiology

Author(s): Lardo AC, Abraham TP, Kass DA

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Abstract Despite the numerous documented benefits of cardiac resynchronization therapy (CRT), a significant proportion of patients undergoing CRT do not demonstrate symptomatic or morphologic improvement, triggering the search to improve targeting of this therapy. Many studies now support direct assessment of mechanical dyssynchrony as a method to better identify CRT responders. Among the methods used, echo-Doppler imaging has taken center stage and is covered in other articles in this special issue; however, these methods have several inherent limitations, and other alternatives are also being explored such as magnetic resonance imaging (MRI). This review discusses the concepts and clinical use of MRI methods for quantitative assessment of mechanical dyssynchrony, highlighting newer acquisition and analysis methods and focusing on how the data can be synthesized into robust indexes of dyssynchronous heart failure. This article was published in J Am Coll Cardiol and referenced in Journal of Clinical & Experimental Cardiology

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