Abstract Background Quantitative assessment of the severity of mitral regurgitation (MR) is based on the calculation of the effective regurgitant orifice (ERO), a measure of lesion severity, and of ...

European Heart Journal - Cardiovascular Imaging, ORIGINAL PAPERS, Andrea Chiampan, Julien Nahum, Mohamed Leye, Johanna Oziel, Caroline Cueff, Eric Brochet, Bernard Iung, Andrea Rossi, Alec Vahanian, ...