Abstract

Background: The use of non-fluoroscopic electromechanical mapping (NOGA, Biosense Webster) for clinical endocardial mapping and cell-based therapies is increasing. Prior in vivo studies of left ventricular ejection fraction (LVEF) by NOGA have shown only modest accuracy; however, data were compared to 2-dimensional ventriculography, which frequently overestimates ventricular volumes, rather than magnetic resonance imaging (MRI) which is more accurate.

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