Predictors of response to cardiac resynchronization therapy on pre-implantation cardiovascular magnetic resonance imaging
نویسندگان
چکیده
Methods Sixty-eight patients receiving CRT underwent pre-implant cardiovascular MRI followed by serial echocardiography at 3 and 6 months. Blinded measurement of Left Ventricular (LV) and Right Ventricular (RV) chamber dimensions, volumes and mass were performed from short axis cine datasets. LV dysynchrony was measured by septal to lateral wall delay. Total LV scar burden was determined from Late Gadolinium Enhancement (LGE) images using manual contour tracing of endocardial and epicardial borders with application of a signal threshold ≥5SD above reference myocardium. Response to CRT was defined as a reduction in LV end-systolic volume (ESV) ≥15% at 6 months.
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عنوان ژورنال:
دوره 15 شماره
صفحات -
تاریخ انتشار 2013