^○Keisuke Nagai¹, Hiroki Higashihara¹, Eiji Kashiwagi¹, Shinya Kosai¹, Hidenari Hongyo¹, Kaishu Tanaka¹, Yusuke Ono¹, Noriyuki Tomiyama¹, Koichi Deguchi², Hiroomi Okuyama² (1.Diagnostic and Interventional Radiology, Osaka University Graduate School of Medicine, 2.Pediatric Surgery, Osaka University Graduate School of Medicine)

^○Taichi Kurose, Tomoyo Fuji, Keizo Tanitame, Masayuki Kobayashi (Prefectural Hiroshima Hospital Radiology Department)

^○Toshiro Imamoto, Makoto Sawano, Kento Okawara, Masaki Matsuda, Haruka Tanaka (Department of Emergency medicine and Critical Care, Saitama Medical Center, Saitama medical University,Saitama,Japan)

^○Koji Yamasaki, Yoshihisa Kodama, Yasuo Sakurai (The Department of Diagnostic Radiology, Teine Keijinkai Hospital, Sapporo, Japan)

^○Kei Ishimura, Toshiaki Yagami, Shinya Kaneko, Takamiti Nagashima, Takashi Hazama, Toshihiko Hayashi, Kouki Usui, Kazukiyo Arakawa, Koki Kato, Keiichi Tanimura, Masanori Honda (The Department of Radiology, Saiseikai Utsunomiya Hospital, Tochigi, Japan)