1. Department of Diagnostic and Interventional Radiology; Hokkaido University Hospital; Sapporo Japan
2. Department of Neurosurgery; Hokkaido University Graduate School of Medicine; Sapporo Japan
3. Department of Radiation Medicine; Hokkaido University Graduate School of Medicine; Sapporo Japan
4. Global Station for Quantum Medical Science and Engineering; Global Institution for collaborative research and education; Sapporo Japan