1. Department of Medical Biophysics, University of Toronto, Canada (C.W.R., C.K.M.)
2. Division of Translational Medicine (C.W.R., E.M.S., E.J., C.K.M)
3. Division of Pediatric Cardiology, The Hospital for Sick Children, Toronto, Canada (D.M., W.M., S.-J.Y., E.J., M.S.).
4. Division of Imaging Sciences and Biomedical Engineering, King’s College London, United Kingdom (D.F.A.L.).
5. Departments of Paediatric and Fetal Cardiology, Evelina Children’s Hospital, London, United Kingdom (D.F.A.L.).
6. Departments of Pediatrics and Diagnostic Imaging, University of Toronto, Canada (S.-J.Y., E.J., M.S.)