Fig. 2From: Direct measurement of atrioventricular valve regurgitant jets using 4D flow cardiovascular magnetic resonance is accurate and reliable for children with congenital heart disease: a retrospective cohort study4DF CMR on Arterys of the direct jet method (a, b) and the indirect annular inflow method (AIMtrack) by valve tracking planes (c, d). Examples of tricuspid regurgitation (row a) and mitral regurgitation (row b) are presented. Rows (c) and (d) represent four-chamber and two-chamber views of AIMtrackBack to article page