1. Center for Medical Image Science and Visualization (CMIV), Linköping University, Linköping, Sweden.
2. Department of Medicine and Health Sciences/Radiology, Linköping University, Linköping, Sweden.
3. Department of Medicine and Health Sciences/Radiation Physics, Linköping University, Linköping, Sweden.
4. Department of Radiation Physics, CKOC, University Hospital of Linköping, Sweden.
5. Department of Radiology, CKOC, University Hospital of Linköping, Sweden.
6. Karolinska Institutet, Department of Clinical Science and Education, Stockholm, Sweden.