^○Hideo Terasawa¹, Taichiro Ashizaki¹, Takeshi Araki¹, Hirotaka Shimizu¹, Toshitaka Kawarai¹, Toshiyuki Uehara¹, Hideo Aihara² (1.Department of neurology, Hyogo brain and heart center at Himeji, Japan, 2.Department of neurosurgery, Hyogo brain and heart center at Himeji)

^○Masafumi Toriyabe^1,2, Masato Kanazawa¹, Masaki Namekawa¹, Masahiro Uemura¹, Osamu Onodera¹ (1.Departments of Neurology, Brain Research Institute, Niigata University, Japan, 2.School of Health Sciences, Niigata University, Japan)

^○Hidesato Takezawa¹, Tetsuya Katsumori², Chihiro Matsuoka¹, Daisuke Nakashima¹, Yasunori Udura³, Gaku Fujiwara³, Shigeomi Yokoya³, Hideki Oka³, Akihiko Hino³, Akihiro Fujii¹ (1.Saiseikai Shiga Hospital, Department of Neurology, Japan, 2.Saiseikai Shiga Hospital, Department of Radiology, 3.Saiseikai Shiga Hospital, Department of Neurosurgery)

^○Kazuki Yamada, Takuya Sasaki, Mizuki Kitamura, Takahiro Nakayama, Ichiro Imafuku (Yokohama Rosai Hospital, Department of Neurology, Japan)

^○Ayako Shioya¹, Akiko Oda¹, Yukiko Kodama², Kazuya Nagasaki², Kazuhiro Ishii³ (1.Department of Neurology, Mito Kyodo General Hospital, Tsukuba University Hospital Mito Area Medical Education Center, Japan, 2.Department of Internal Medicine, Mito Kyodo General Hospital, Tsukuba University Hospital Mito Area Medical Education Center, 3.Department of Neurology, Division of Clinical Medicine, Faculty of Medicine, University of Tsukuba)

^○Toshi Sai, Keisuke Imai, Takehiro Yamada, Atsushi Yamamoto, Tetsuya Ioku, Masanori Cho, Ryota Ueda, Takuma Kato, Yoshihiro Tanaka, Ayaka Kuze, Haruka Nakatani (Department of Neurology and stroke treatment, Japanese Red Cross Kyoto Daiichi Hospital, Japan)