1. Department of Surgery, Sørlandet Sykehus Kristiansand, Kristiansand, Norway
2. Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway
3. Department of Circulation and Medical Imaging, CIUS/NTNU/St. Olavs Hospital, Norwegian University of Science and Technology, Trondheim, Norway
4. Department of Vascular Surgery, Section of Vascular Investigations, Division of Cardiovascular and Pulmonary Diseases, Oslo University Hospital, Oslo, Norway
5. Department of Vascular Surgery, St. Olavs Hospital, Trondheim, Norway