Fig. 1From: Tricuspid flow and regurgitation in congenital heart disease and pulmonary hypertension: comparison of 4D flow cardiovascular magnetic resonance and echocardiographyExample of 4D flow. Example of 4D-flow CMR analysis. In a-d the annular plane is reconstructed perpendicular to the flow direction, in figure e + f the flow contours are drawn in the reconstructed through-plane flow sliceBack to article page