Yuki Yamamoto^1,2, Nobuaki Yamamoto¹, Kazutaka Kuroda¹, Tomohiro Matsuda³, Kenji Shimada³, Yasuhisa Kanematsu³, Yasushi Takagi³, Yuishin Izumi¹ (1.Department of Neurology, Tokushima University Hospital, Japan, 2.Department of Neurology, Tokushima Prefectural Central Hospital, Japan, 3.Department of Neurosurgery, Tokushima University Hospital, Japan)

Kensuke Kimura^1,2, Masato Tanosaki¹, Toshimi Okushima¹, Tatsuya Nodagashira², Akihide Konn², Ichiro Suzuki³ (1.Hachinohe City Hospital, Department of Neurology, Japan, 2.Hachinohe City Hospital, Department of Emergency and Critical Care Medicine, Japan, 3.Hachinohe City Hospital, Department of Neurosurgery, Japan)

Yuta Serizawa¹, Kouzi Suzuki¹, Katsuya Hayashi², Kenichiro Hashimoto¹, Iichiro Matsuura², Mitsuhiro Aikawa¹, Toshihiro Yamauchi², Akihiro Miyata² (1.Department of Neurology, Chiba Emergency Medical Center, Japan, 2.Department of Neurosurgery, Chiba Emergency Medical Center, Japan)

Noriko Matsumoto, Takehiro Katano, Kentaro Suzuki, Tomonari Saito, Yumiko Mayuzumi, Yusuke Nakamura, Sae Ueda, Miko Fukasawa, Shoya Morise, Ryutarou Kimura, Schinichirou Numao, Toru Nakagami, Junya Aoki, Satoshi Suda, Yasuhiro Nishiyama, Kazumi Kimura (Department of Neurology, Nippon Medical School Hospital, Japan)

Tetsuya Ioku¹, Shigeru Miyachi², Tomotaka Ohshima², Naoki Matsuo², Reo Kawaguchi², Mao Yokota² (1.Aichi medical university stroke center, Japan, 2.Aichi medical university Neurosurgery, Japan)