1. Department of Circulation and Medical Imaging (ISB), Norwegian University of Science and Technology (NTNU), Trondheim, Norway
2. Clinic of Cardiology, St. Olavs University Hospital, Trondheim, Norway
3. St. Olavs University Hospital, Trondheim, Norway
4. Department of Computer Science (IDI), Norwegian University of Science and Technology (NTNU), Trondheim, Norway