^○Mineyoshi Nango¹, Yukimasa Sakai², Yuki Sakai¹, Ryo Ogino¹ (1.Department of Radiology, Division of Diagnostic Radiology, National Hospital Organiztion, Osaka Minami Medical Center, 2.Department of Radiology, Division of IVR center, National Hospital Organization, Osaka Minami Medical Center)

^○Takehito Yokoi¹, Noritaka Seino^1,2, Hiromi Matsuzaka¹, Makoto Hasegawa¹, Norihiro Nomura³, Jyunichi Eguchi³, Yoshio Deguchi³, Takayoshi Itou³ (1.The Department of Radiology, Showa University Koto Toyosu Hospital, Tokyo, Japan, 2.The Department of Radiology, Showa University School of Medicine, Tokyo, Japan, 3.Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan)

^○Kenta Izaki¹, Chieko Kinoshita¹, Satoru Ikeda², Eiro Sakai¹, Koji Sugimoto³, Takamichi Murakami⁴ (1.Department of Radiology, Hyogo Prefectural Kakogawa Medical Center, Hyogo, Japan, 2.Kakogawa Acute Care Medical Center, Hyogo Prefectural Kakogawa Medical Center, Hyogo, Japan, 3.Center for Endovascular Therapy, Kobe University Hospital, Kobe, Japan, 4.Department of Diagnostic Radiology, Kobe University Graduate School of Medicine, Kobe, Japan)

^○Misaki Shoji, Kenji Ibukuro, Naohiro Sudo, Takahiro Miyauchi, Kazu Shibutani, Kenichirou Tago, Takayuki Matsumoto, Mariko Mizuno, Yusuke Toda, Jitsuro Tsukada, Masahiro Okada (Department of Radiology, Nihon University School of Medicine)

^○Nobuhisa Tajiri¹, Hiro Okawa¹, Kento Hisazumi¹, Norihisa Katayama¹, Tsuyomu Shiode¹, Shirou Akaki¹, Susumu Kanazawa² (1.The Department of Radiology, Kagawa Prefectural Central Hospital, Kagawa, Japan, 2.The Department of Radiology, Okayama University Hospital, Okayama, Japan)

^○Keita Nakayama, Masashi Shimohira, Keiichi Nagai, Kengo Ohta, Tatsuya Kawai, Shunsuke Shibata, Masaya Kisohara, Yuta Shibamoto (Department of Radiology, Nagoya City University Graduate School of Medical Sciences)