1. Department of Medical Imaging, Radboud Institute for Health Sciences, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
2. Department of Urology, Radboud Institute for Health Sciences, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
3. Department of Radiology, Ziekenhuisgroep Twente, 7609 PP Almelo, The Netherlands