1. Radiological Technology Section; Reseach Center Hospital for Charged Particle Therapy, National Institute of Radiological Sciences; Chiba Japan
2. Research Program for Carbon Ion Therapy and Diagnostic Imaging; Reseach Center for Charged Particle Therapy, National Institute of Radiological Sciences; Chiba Japan
3. Hokkaido University Hospital Center for Advanced Oral Medicine; Sapporo Japan
4. Faculty of Health Sciences; Hokkaido University; Sapporo Japan
5. Department of Diagnostic and Interventional Radiology; Hokkaido University Hospital; Sapporo Japan