^○YUKITOSHI TOYODA¹, SHINTARO FRUGORI¹, TOMOHIKO ORITA¹, KATSUYA MAESHIMA², YUKIO INOUE², KOUZO SATOU², TOMOHIRO FUNABIKI¹ (1.Department of Emergency and Critical Care Medicine,Saiseikai Yokohamashi Tobu Hospital,Kanagawa,Japan, 2.Department of Diagnostic Radiology,Saiseikai Yokohamashi Tobu Hospital,Kanagawa,Japan)

^○IZUMI TANAKA, TATSUO UEDA, FUMIE SUGIHARA, DAISUKE YASUI, HIDEMASA SAITO, SAYAKA SHIRAI, EIGO KODANI, SIN-ICHIRO KUMITA (Department of Radiology, Nippon Medical School, Tokyo, Japan)

^○SHOHEI INUI, HIROSHI KONDO, TARO YOKOYAMA, TOSHIMASA SUGAWARA, RYUSEI ZAKO, AKIYOSHI SUZUKI, ERI HOSHINO, JOE TODA, HIROSHI OBA (Department of Radiology, Teikyo University School of Medicine, Tokyo, Japan)

^○WATARU HIGASHIURA¹, Hiroaki Takara¹, Ryouichi Kitamura¹, Takafumi Haraguchi^1,4, Tadashi Yasutani¹, Tomiaki Kubota², Takahiro Murakami³ (1.Department of Radiology, Okinawa Prefectural Chubu Hospital, 2.Department of Gastroenterology, Okinawa Prefectural Chubu Hospital, 3.Department of Surgery, Okinawa Prefectural Chubu Hospital, 4.Department of Radiology, Kawasaki Municipal Tama Hospital)

^○Ryoichi Kitamura¹, Wataru Higashiura¹, Hiroaki Takara¹, Tomotaka Iraha⁴, Morihiro Katsura², Tomiaki Kubota³, Tadashi Yasutani¹ (1.Department of Radiology, Okinawa Prefectural Chubu Hospital, Uruma, Japan, 2.Department of Surgery, Okinawa Prefectural Chubu Hospital, Uruma, Japan, 3.Department of Gastroenterology, Okinawa Prefectural Chubu Hospital, Uruma, Japan, 4.Department of Radiology, St. Marianna University School of Medicine, Yokohama, Japan)

^○SHINYA KOSAI, Hiroki Higashihara, Eiji Kashiwagi, Keisuke Nagai, Yasushi Kimura, Kaishu Tanaka, Yusuke Ono, Keigo Osuga, Noriyuki Tomiyama (Department of Diagnostic and Interventional Radiology, Osaka University Hospital, Osaka, Japan)