1 Department of Medical Imaging, The Prince Charles Hospital, Chermside, Queensland 4032, Australia.; Faculty of Medicine, University of Queensland, Herston, Queensland 4006, Australia. Electronic address: Joseph.Lee@health.qld.gov.au.
2 School of Health Sciences, University of Newcastle, Australia.
3 Department of Cardiology, Westmead Hospital, Westmead, NSW 2145, Australia; School of Medicine, University of Notre Dame, Sydney, NSW 2000, Australia.