Fig. 5
A 42-year-old woman with pulmonary regurgitation after surgically repaired tetralogy of Fallot who presented with dyspnoea at exertion. Early (a) and end (b) diastolic short-axis steady-state free precession cine-MR images showing dilatation of the right ventricle and flattening of the ventricular septum (arrow) at early diastole that regained a normal appearance at the end of diastolic filling. c Phase velocity-encoded cine MR image on a plane perpendicular to the main pulmonary artery during diastole, showing back blood flow, which indicates retrograde flow due to pulmonary regurgitation. The regurgitation rate calculated for this patient was 59%