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Figure 7 Comparison of EROA and 3D-VC Area for Differentiation of MR Severity Grade
MR severity (grades 1 to 4) as defined by a comprehensive evaluation of qualitative and quantitative echocardiographic parameters as recommended by the American Society of Echocardiography. Note the effective differentiation of grades 2, 3, or 4 MR by either Doppler-derived EROA or VC area measurement. Dotted orange lines depict the threshold EROA values recommended by the American Society of Echocardiography to define mild (EROA <0.2 cm2) and severe (EROA  0.4 cm2) MR. Abbreviations as in Figures 1 and 5.
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