1. Center for Minimally Invasive Treatment, Nippon Medical School Musashikosugi Hospital
2. Department of Radiology, Nippon Medical School Musashikosugi Hospital
3. Department of Radiology, Nippon Medical School Hospital
4. Department of Radiology, Teikyo University Mizonokuchi Hospital
5. Department of Radiology, Saitama Medical University International Medical Center