Direct Quantification of Mitral Regurgitant Flow Volume by Real-Time Three-Dimensional Echocardiography Using Dealiasing of Color Doppler Flow at the Vena Contracta

Dealiasing of color Doppler flow at the vena contracta is feasible and appears promising for measuring MR severity quantitatively. This novel approach can be readily implemented in current systems to provide rapid semiautomated MR flow volume and MR fraction.