^○KATSUTOSHI TAKAYAMA¹, Kaoru Myouchin¹, Takeshi Wada², Shinichiro Kuroka^2,3, Kimihiko Kichikawa² (1.Department of Radiology and Interventional neuroradiology, 2.Department of Radiology and IVR center, 3.Department of Neurorsurgery)

^○taketo hatano, hideo chihara, hiroki sakamoto, takahiko kamata, eiji higashi, shota sakai, daisuke kondo, keita suzuki, takenori odura, mistushige ando, izumi nagata (The Department of Neurosurgery, Kokura Memorial Hospital)

^○Masaru Hirohata¹, Toshi Abe² (1.Department of Neurosurgery, Kurume University Hospital, 2.Department of RAdiology, Kurume University hospital)

^○Ichiro Nakahara (Department of Comprehensive Strokology, Fujita Health University)