^○Shunta Ishitoya, Naoko Kamijo, Masahiro Toda, Yasuomi Fujimoto, Toshihiro Yamaki, Atsutaka Okizaki (Department of Radiology, Asahikawa Medical University, Asahikawa, Japan)

^○Hirotatsu Sato, Tetsuo Sonomura, Saeko Onishi, Ryuta Okuhira, Shota Ueda, Masataka Koike, Ryota Tanaka, Atsufumi Kamisako, Takao Koyama, Fumihiro Tanaka, Akira Ikoma, Motoki Nakai (Department of Radiology, Wakayama Medical Univercity, Wakayama, Japan)

^○Hiroki Minamiguchi¹, Takao Koyama², Rinpei Imamine³ (1.Department of Radiology, Kochi Medical School, Kochi University, Nankoku, Japan, 2.Department of Radiology, Wakayama Medical University, Wakayama, Japan, 3.Department of Diagnostic Radiology, Kurashiki Central Hospital, Kurashiki, Japan)

^○Kentaro Yamada¹, Kosuke Kumagai², Younes Jahangiri¹, Jianjun Li¹, Ahmed Gabr¹, Barry Uchida¹, Khashayar Farsad¹, Masahiro Horikawa¹ (1.Dotter Department of Interventional Radiology, Oregon Health & Science University, Portland, OR, USA, 2.Department of Neurosurgery, National Defense Medical College, Tokorozawa, Japan)

^○Kentaro Yamada, Khashayar Khashayar, Younes Jahangiri, Ahmed Gabr, Jianjun Li, Barry Uchida, Masahiro Horikawa (Dotter Department of Interventional Radiology, Oregon Health & Science University, Portland, OR, USA)

^○Ryuichiro Tani^1,3, Takuya Okada¹, Eisuke Ueshima¹, Masakazu Shinohara², Tomoyuki Gebtsu¹, Koji Sasaki¹, M.A.S Hamada¹, Keitaro Sofue¹, Masato Yamaguchi¹, Koji Sugimoto¹, Takamichi Murakami¹ (1.Department of Diagnostic and Interventional Radiology, Kobe University Hospital, 2.The Integrated Center for Mass Spectrometry, Graduate School of Medicine, Kobe University, 3.Department of Diagnostic Radiology, Kobe city Nishikobe Medical center)