1. Department of Radiology; Oita University Faculty of Medicine; Yufu Oita Japan
2. Department of Urology; Oita University Faculty of Medicine; Yufu Oita Japan
3. Department of Molecular Pathology; Oita University Faculty of Medicine; Yufu Oita Japan
4. Oita Diagnostic Imaging Center; Beppu Oita Japan
5. Department of Radiology; Tokai University Hachioji Hospital; Tokai University School of Medicine; Hachioji Tokyo Japan