Fig. 3From: Tricuspid flow and regurgitation in congenital heart disease and pulmonary hypertension: comparison of 4D flow cardiovascular magnetic resonance and echocardiographyTricuspid valve 2D-flow versus 4D-flow. Bland-Altman plots of tricuspid valve effective flow using a static annular plane (similar to 2D flow) versus effective flow across the pulmonary valve (a) and versus 4D flow (b). c) depicts tricuspid regurgitant fraction using a static annular plane (2D flow on y-axis) versus 4D flow (x-axis)Back to article page