J Bone Joint Surg Am 2017 Nov;99(21):1827-1835
1Royal National Orthopaedic Hospital, Institute of Orthopaedics and Musculoskeletal Sciences (R.B., J.A.S., and A.J.H.) and Institute of Cardiovascular Science (A.A.-G., S.N., G.W.L., J.C.M., and C.M.), University College London, London, United Kingdom 2Barts Heart Center, The Cardiovascular Magnetic Resonance Imaging Unit, St Bartholomew's Hospital, London, United Kingdom 3NIHR University College London Hospitals Biomedical Research Centre, London, United Kingdom 4Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom 5Medical Signal and Image Processing Program, National Heart, Lung, and Blood Institute, Bethesda, Maryland.