1. Joint Department of Medical Imaging, University of Toronto, Toronto General Hospital, Toronto, ON, Canada
2. KA Imaging, Waterloo, ON, Canada
3. Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, Canada
4. Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, ON, Canada
5. Tufts University School of Medicine/Partners In Health, Boston, MA, USA