1 Department of Medical Imaging, University of Toronto, Toronto, ON, Canada. Bernd.Wintersperger@uhn.ca.
2 University Medical Imaging Toronto, Peter Munk Cardiac Centre, Toronto General Hospital, 1 PMB-273, 585 University Avenue, Toronto, ON, M5G 2N2, Canada. Bernd.Wintersperger@uhn.ca.
3 Department of Radiology, LMU University Hospital, LMU Munich, Munich, Germany.