1. From the Department of Computer Science, BHF Centre of Research Excellence, University of Oxford, Oxford, United Kingdom (X.Z., A.B.-O., K.B., B.R.); Institute of Cardiovascular Science, University College London, London, United Kingdom (M.O., P.T., P.D.L.); Mechanical Engineering Department, University College London, London, United Kingdom (B.H.); The Heart Hospital, University College London Hospital, London, United Kingdom (M.O., M.H., P.T., P.D.L.); and ACEMS ARC Centre of Excellence and School...