*Eiji Shiozaki¹, Hidenao Atarashi², Toshiaki Nakazato³, Akiyoshi Numadate⁴ (1. National University Hospital Council of Japan, 2. The University of Tokyo Hospital, 3. Japan Medical Imaging and Radiological Systems Industries Association, 4. Ministry of Health, Labour and Welfare)

*Toshiaki Nakazato¹ (1. Japan Medical Imaging and Radiological Systems Industries Association)

*Akiyoshi Numadate¹ (1. Ministry of Health, Labour and Welfare)