1. Department of Diagnostic Radiology, Sahlgrenska sjukhuset University of Göteborg, S-4I345, Göteborg, Sweden
2. Department of Clinical Physiology, Sahlgrenska sjukhuset University of Göteborg, S-4I345, Göteborg, Sweden
3. Department of Urology, Sahlgrenska sjukhuset University of Göteborg, S-4I345, Göteborg, Sweden