Does 3D VCA measurement by color Doppler 3D echocardiography improve the accuracy of mitral regurgitation severity grading compared to 2D methods?
3D VCA by color Doppler echocardiography offers a more accurate and uniform method for grading mitral regurgitation severity than 2D PISA by avoiding geometric assumptions.
Three-dimensional VCA provides a single, directly visualized, and reliable measurement of ROA, which classifies MR severity comparable to current clinical practice using the American Society of Echocardiography-recommended 2D integrative method. The 3D VCA method improves accuracy of MR grading compared with the 2D PISA method by eliminating geometric and flow assumptions, allowing for uniform clinical grading cutoffs and ranges that apply regardless of etiology and orifice shape.
Zeng et al. (Wed,) studied this question.
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