1 Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoinkawahara-cho, Sakyo-Ku, Kyoto, 606-8507, Japan.
2 Department of Radiology, Tazuke Kofukai Medical Research Institute, Kitano Hospital, Osaka, Japan.
3 Department of Radiation Oncology Image-Applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
4 Department of Urology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
5 Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoinkawahara-cho, Sakyo-Ku, Kyoto, 606-8507, Japan. ynakamo1@kuhp.kyoto-u.ac.jp.