1. From the Departments of Adult Congenital Cardiology (A.V.D.B., P.D.M., W.B.), Cardiovascular Medicine (A.L.G., G.C., H.H. H.G.), Anesthesiology (S.D.), Radiology (J.B.), and Pediatric Cardiology, University Hospitals Leuven, Leuven, Belgium (M.G.); St. Vincent’s Hospital, Department of Medicine, University of Melbourne, Fitzroy, Australia (A.L.G.); and Medical Imaging Research Center, University of Leuven, Leuven, Belgium (P.C.).