Quantification of mitral regurgitation by the proximal flow convergence method--comparison of transthoracic and transesophageal echocardiography.

Background: No dataexist to indicate whether transthoracic (TTE) and transesophageal echocardiography (TEE) are of comparable value for the detection and quantification of mitral regurgitation using the proximal flow convergence method.

Hypothesis: The study was performed to compare the value of TTE and TEE for the detection and quantification of mitral regurgitation using this method.

Methods: The study included 57 patients with and 11 patients without mitral regurgitation.