Frontiers in Cardiovascular Medicine
Comparison of circular and elliptical geometric models with optimal two-dimensional imaging view for Doppler quantification of mitral regurgitant volume in older patients
Background Doppler volumetric quantification of mitral regurgitation (MR) depends on accurate stroke-volume estimation, but simplified assumptions regarding mitral annular area may introduce view-dependent error, particularly in older patients. This study evaluated whether circular versus elliptical annular models and standard two-dimensional (2D) imaging views influence Doppler-derived regurgitant volume (RVol) and effective regurgitant orifice area (EROA), using three-dimensional (3D) echocardiographic reference …