Usefulness of Mitral Annular Systolic Velocity in the Detection of Left Ventricular Systolic Dysfunction: Comparison with Three Dimensional Echocardiographic Data

摘要

BackgroundAlthough the modified Simpson's method is widely used for the assessment of left ventricular ejection fraction (LVEF), it has limitations including relatively high inter- and intra-observer variability and time consuming nature. We want to evaluate whether assessing mitral annular systolic velocity (S' velocity) by tissue Doppler imaging (TDI) can be used to evaluate LV systolic function with comparing LVEF by three dimensional echocardiography (3DE).