1. Department of Cardiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden;
2. Department of Clinical Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden;
3. Sahlgrenska University Hospital, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden;
4. Heart Centre, King Faisal Specialist Hospital & Research Centre, Riyadh, Kingdom of Saudi Arabia;
5. Department of Diagnostic Radiation Physics, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden;
6. Department of Clinical Sciences, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden;
7. Department of Radiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden