^○Takuya Hara, Hiroshi Kondo, Toshiaki Sugawara, Ryusei Zako, Kotarou Yamamoto, Suguru Hitomi, Mizuki Ozawa, Masayoshi Yamamoto, Hiroshi Oba (Teikyo University Hospital,Tokyo,Japan)

^○Satoshi Okubo¹, Masahisa Nakamura¹, Yusuke Tsunetoshi², Kousuke Tomotake¹, Hiroki Yano¹, Hideaki Yakushiji², Kouji Amano², Hiromitsu Sumikawa¹, Hiroaki Kuriu¹ (1.Sakai City Medical Center, Osaka, Japan, 2.Sakai City Medical Center, Osaka, Japan)

^○Eiji Kashiwagi, Hiroki Higashihara, Shinya Kosai, Keisuke Nagai, Hidenari Hongyo, Kaishu Tanaka, Yusuke Ono, Noriyuki Tomiyama (Department of Diagnostic and Interventional Radiology,Osaka university Graduate School of Medicine, Osaka, Japan)

^○Daisuke Yasui¹, Fumie Sugihara¹, Hidemasa Saitou¹, Izumi Tanaka¹, Sayaka Shirai¹, Ryuutarou Fuzitsuna¹, Taiga Matsumoto¹, Kouichi Akutsu², Shin-Ichiro Kumita¹ (1.Department of Radiology, Nippon Medical School, Tokyo, Japan, 2.Department of Cardiology, Nippon Medical School, Tokyo, Japan)

^○Miki Yoshida¹, Kensaku Mori¹, Hiroaki Takahashi¹, Shunsuke Kikuchi¹, Aiko Urushibara¹, Youhei Takei¹, Sodai Hoshiai¹, Yuni Yamaki², Ryoko Suzuki², Fumiko Chiba³, Masayuki Noguchi⁴, Tomohiko Masumoto¹ (1.Department of Radiology, University of Tsukuba hospital, Ibaraki, Japan, 2.Department of Pediatrics, University of Tsukuba hospital, 3.Department of Pediatric surgery, University of Tsukuba hospital, 4.Department of Diagnostic Pathology, University of Tsukuba hospital)

^○Asako Kuhara¹, Masamichi Koganemaru¹, Tomoko Kugiyama¹, Masakazu Nabeta², Shuichi Tanoue¹, Norimitsu Tanaka¹, Toshi Abe¹ (1.Department of Radiology, Kurume University School of Medicine, 2.Department of Emergency and Critical Care Medicine)

^○Soichiro Kajita, Koji Tomita, Takao Hiraki, Toshihiro Iguchi, Yusuke Matsui, Mayu Uka, Toshiyuki Komaki, Soichiro Okamoto, Kazuaki Munetomo, Hideo Gobara, Susumu Kanazawa (Department of Radiology, Okayama University Medical School, Okayama, Japan)