^○Masato Takeuchi¹, Yusuke Kanoko², Tatsuya Igarashi² (1.Department of Emergency Medicine, Fujieda Municipal General Hospital, 2.Department of Radiology, Fujieda Municipal General Hospital)

^○Daisuke Yasui¹, Fumie Sugihara¹, Tatsuo Ueda¹, Hidemasa Saitou¹, Izumi Tanaka¹, Sayaka Shirai¹, Ryuutarou Fuzitsuna¹, Taiga Matsumoto¹, Keiko Kaneko², Shoji Yokobori³, Hiroyuki Yokota³, Shin-Ichiro Kumita¹ (1.Department of Radiology, Nippon Medical School, Tokyo, Japan, 2.Department of Gastroenterology, Nippon Medical School, Tokyo, Japan, 3.Department of Emergency and Critical Care Medicine, Nippon Medical School, Tokyo, Japan)

^○Satomi Senoo¹, Masakazu Takigawa², Kouta Hirakawa², Toshio Inoue², Tomoko Omori² (1.The Department of Critical Care and Emergency Meddicne, Saiseikai Yokohama-shi Tobu Hospital, Kanagawa, Japan, 2.The Department of Radiology. National Hospital Organization Sagamihara Hospital, Kanagawa, Japan)

^○Mika Muraki¹, Jun Otaka¹, Toru Saguchi¹, Taro Tanaka¹, Natsuhiko Shirota¹, Shoichi Ikenaga¹, Elly Arizono¹, Kazuhiro Saito¹, Daisuke Yunaiyama², Yuki Takara², Tomonaga Moriya³, Yuichi Nagakawa⁴, Akihiko Tsuchida⁴ (1.The Department of Radiology, Tokyo Medical University, Tokyo, Japan, 2.東京医科大学八王子医療センター　放射線科, 3.東京医科大学茨城医療センター　放射線科, 4.東京医科大学病院　消化器外科・小児外科)

^○Asuka Tsuchiya¹, Joe Toda², Kouji Ishigami¹, Fumimasa Tabata³, Masahito Togo¹, Yusuke Tsutsumi¹, Yoshinobu Kobayashi⁴, Masanori Inoue⁵ (1.Department of Emergency and Critical Care Medicine, National Hospital Organization Mito Medical Center, 2.Department of Diagnostic Radiology, Mitsui Memorial Hospital, 3.Department of Cardiovascular Internal Medicine, National Hospital Organization Mito Medical Center, 4.Department of Surgery, National Hospital Organization Mito Medical Center, 5.Department of Radiology, Keio University of School of Medicine)