Abstract: Evaluation of mitral regurgitation (MR) severity remains complex and challenging. An integrative approach to grading MR is recommended. The use of multiple Doppler methods should be used to help discriminate between grades of severity. Importantly, MR severity should always be considered in the context of clinical data. The emerging inclusion of 3-dimensional echocardiography may provide complementary data for MR quantification and better anatomic and pathophysiological detail of the mitral valve. This article summarizes recommendations for MR assessment and highlights the importance of an integrated approach, using anatomic information as well as qualitative and quantitative Doppler measures
