Diagnostic value of vena contracta area in the quantification of mitral regurgitation severity by color Doppler 3D echocardiography.

ABSTRACT:

Background

Accurate quantification of mitral regurgitation (MR) is important for patient treatment and prognosis. Three-dimensional echocardiography allows for the direct measure of the regurgitant orifice area (ROA) by 3D-guided planimetry of the vena contracta area (VCA). We aimed to (1) establish 3D VCA ranges and cutoff values for MR grading, using the American Society of Echocardiography-recommended 2D integrative method as a reference, and (2) compare 2D and 3D methods of ROA to establish a common calibration for MR grading.

Methods and results

Eighty-three patients with at least mild MR underwent 2D and 3D echocardiography. Direct planimetry of VCA was performed by 3D echocardiography. Two-dimensional quantification of MR included 2D ROA by proximal isovelocity surfac

SUBMITTER: Zeng X 

PROVIDER: S-EPMC3224848 | biostudies-literature | 2011 Sep

REPOSITORIES: biostudies-literature