1. Department of Radiology, Vejle Hospital, University Hospital of Southern Denmark, Vejle, Denmark
2. Department of Regional Health, University of Southern Denmark, Odense, Denmark
3. Danish Colorectal Center South, Vejle Hospital, University Hospital of Southern Denmark, Vejle, Denmark
4. Department of Radiology, Kolding hospital, University Hospital of Southern Denmark, Kolding, Denmark
5. Health Sciences Research Centre, University College Lillebælt, Svendborg, Denmark