Kaito Watanabe¹, Ryutaro Kimura¹, Sae Ueda¹, Shinako Fujiwara¹, Kiichiro Oryu¹, Toru Nakagami¹, Noriko Arai¹, Ichiro Deguchi¹, Takeshi Hayashi¹, Shinichi Takahashi¹, Yuji Kato¹, Masataka Yoshimura², Shinya Kohyama², Satoshi Suda¹ (1.Department of Neurology, Saitama Medical University International Medical Center, Japan, 2.Department of Intravascular Neurosurgery, Saitama Medical University International Medical Center, Japan)

Shinichiro Numao, Takehiro Katano, Ginga Saji, Jun Shioda, Ryoichi Takami, Shunsuke Kido, Junki Yoshimura, Yuji Nishi, Akihito Kutsuna, Kentaro Suzuki, Takuya Kanamaru, Tomonari Saito, Yasuhiro Nishiyama, Kazumi Kimura (Nippon Medical School Department of Neurology, Japan)

Takato Hiramine¹, Rira Kawai¹, Yuya Shigehatake¹, Fumio Miyashita¹, Eri Inoue², Masayuki Morikawa², Masanori Sato², Hiroshi Hosoyama², Takashi Ishigami², Tadaaki Niiro², Yosuke Nishimuta², Hiroshi Tokimura², Osamu Watanabe¹ (1.Department of Neurology, Kagoshima city hospital, Japan, 2.Department of Neurosurgery, Kagoshima city hospital, Japan)

Yuki Shimizu, Yoshinari Nagakane, Naoki Tokuda, Atushi Yamamoto, Shiori Ogura, Keiko Maezono, Hiraku Matuura, Chihiro Matuoka, Masashi Hamanaka (kyoutodainisekizyuuzibyouinnoushinkeinaika, Japan)

Yoshinori Kurauchi¹, Toshiyuki Onda², Ken Takahashi¹, Shigeru Inamura², Tadashi Nonaka², Masahiko Daibou² (1.Department of Neurology, Sapporo Shiroishi Memorial Hospital, Japan, 2.Department of Neurosurgery, Sapporo Shiroishi Memorial Hospital, Japan)

Ryoko Inutsuka¹, Sohei Yoshimura¹, Atsushi Ogawa¹, Keito Arakaki¹, Naruhiko Kamogawa¹, Kaori Miwa¹, Hirotoshi Imamura², Hiroharu Kataoka², Kazunori Toyoda¹, Masatoshi Koga¹ (1.National Cerebral and Cardiovascular Center Cerebrovascular Medicine, Japan, 2.National Cerebral and Cardiovascular Center Department of Neurosurgery, Japan)