1. Department of Radiology, Karolinska University Hospital, Stockholm, Sweden
2. Centre for Upper Gastrointestinal Diseases, Division of Surgery, Karolinska University Hospital, Stockholm, Sweden
3. Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden
4. Department of Radiology, Virginia Mason Medical Center, Seattle, WA, USA
5. Department of Thoracic Surgery, Virginia Mason Medical Center, Seattle, WA, USA