Grading of mitral regurgitation based on intensity analysis of the continuous wave Doppler signal Ghent University
Objectives: Echocardiographic methods are used to quantify mitral regurgitation (MR) severity; however, their applicability, accuracy and reproducibility have been debated. We aimed to develop and validate a novel custom-made transthoracic echocardiographic method for grading MR severity based on average pixel intensity (API) analysis of the continuous wave (CW) Doppler envelope. Methods: MR was assessed in 290 patients using API, colour Doppler ...