Figure 35: 3D reconstruction of a MRA in an adult patient after repair of TOF with pulmonary atresia. Multiple collateral arteries were unifocalized with the central pulmonary arteries and connected to the right ventricle (RV) using a conduit (C). There is severe proximal stenosis (white arrowhead) of the right pulmonary artery (RPA). LPA left pulmonary artery.