^○Yoshiko Takahashi¹, Taizen Nakase², Yui Sanpei¹, Akira Hanazono¹, Sachiko Kamada¹, Masashiro Sugawara¹, Junta Moroi³, Tatsuya Ishikawa³ (1.Department of Neurology, Akita University Hospital, 2.Stroke Coprehensive Medical Center, Akita University Hospital, 3.Akita Cerebrospinal and Cardiovascular Center)

^○Kazuma Koda, Hiroshi Adachi, Masahiko Ota, Yukihiro Yoneda, Yasufumi Kageyama (Division of Neurology, Hyogo Prefectural Amagasaki General Medical Center)

^○Yuka Terasawa, Atsuhito Nakamichi, Ryo Shimomura, Kota Sato, Takahiro Himeno, Kazuhiro Takamatsu, Yutaka Shimoe, Tatsuo Koriyama (Department of Neurology, Brain Attack Center Ota Memorial Hospital)

^○Koichi Nomura¹, Naohisa Suzuki^1,2, Kazumi Kimura² (1.Department of Neurology, Shioda Hospital, 2.Department of Neurological science, Graduate School of Medicine, Nippon Medical School)

^○Akihiro Ueno¹, Michiaki Kinoshita¹, Takushi Yasude¹, Yoshiki Sekijima² (1.Suwa Red Cross Hospital, 2.Neurology dept., School of medicine, Shinshu University)

^○Kota Sato¹, Atsuhito Nakmichi¹, Ryo Shimomura¹, Takahiro Himeno¹, Yuka Terasawa¹, Kazuhiro Takamatsu¹, Yutaka Shimoe¹, Koji Abe², Tatsuo Kohriyama¹ (1.Department of Neurology, Brain Attack Center Ota Memorial Hospital, 2.Department of Neurology, Okayama University Medical School)

^○Hiromasa Sato¹, Masaki Kakizawa¹, Takashi Isobe¹, Daisuke Sato², Kazuo Kitazawa², Takao Hashimoto¹ (1.Department of Neurology, Aizawa Hospital, 2.Department of Neurosurgery, Aizawa Hospital)