1. University of Oulu, Research Unit of Medical Imaging, Physics and Technology, Faculty of Medicine, Oulu, FinlandbUniversity of Eastern Finland, Department of Applied Physics, Kuopio, Finland
2. South Karelia Central Hospital, Department of Radiology, Lappeenranta, Finland
3. University of Eastern Finland, Department of Applied Physics, Kuopio, Finland
4. University of Jyväskylä, Department of Health Sciences, Jyväskylä, Finland
5. Umeå University, Department of Integrative Medical Biology, Umeå, SwedenfHealth Science Center of Xi’an Jiaotong University, School of Public Health, Key Laboratory of Trace Elements and Endemic Diseases, National Health and Family Planning Commission, Xi’an, China
6. University of Eastern Finland, Department of Applied Physics, Kuopio, FinlandgKuopio University Hospital, Diagnostic Imaging Center, Kuopio, Finland
7. University of Oulu, Research Unit of Medical Imaging, Physics and Technology, Faculty of Medicine, Oulu, FinlandhOulu University Hospital, Department of Diagnostic Radiology, Oulu, FinlandiUniversity of Oulu and Oulu University Hospital, Medical Research Center Oulu, Oulu, Finland