Sakyo Hirai, Takuya Watanabe, Satoru Takahashi, Hiroto Hada, Hikaru Wakabayashi, Mariko Ishikawa, Kosuke Umeda, Hirotaka Sagawa, Shoko Fujii, Kyohei Fujita, Jun Oyama, Kazutaka Sumita. Evaluation of Carotid Plaque Vulnerability Using Dual-energy Computed Tomography Angiography: a Prospective Observational Study. Clin Neuroradiol. 2026.03; ( PubMed, DOI )

Fujii Shoko, Anzai Tatsuhiko, Fujita Kyohei, Ishikawa Mariko, Shigeta Keigo, Yoshimura Masataka, Hirota Shin, Yoshino Yoshikazu, Yamada Kenji, Takahashi Satoru, Hirai Sakyo, Takahashi Kunihiko, Sumita Kazutaka. Predicting Cerebral Aneurysm Recurrence after Coil Embolization: A Novel Deep Learning Approach Using Time-of-flight Magnetic Resonance Angiography(タイトル和訳中) Neurologia medico-chirurgica. 2026.03; 66 (3): 170-178. ( ichushi )

Shoko Fujii, Tatsuhiko Anzai, Kyohei Fujita, Mariko Ishikawa, Keigo Shigeta, Masataka Yoshimura, Shin Hirota, Yoshikazu Yoshino, Kenji Yamada, Satoru Takahashi, Sakyo Hirai, Kunihiko Takahashi, Kazutaka Sumita. Predicting Cerebral Aneurysm Recurrence after Coil Embolization: A Novel Deep Learning Approach Using Time-of-flight Magnetic Resonance Angiography. Neurol Med Chir (Tokyo). 2026.01; ( PubMed, DOI )

Fujita Kyohei, Kinoshita Yuki, Sagawa Hirotaka, Bongguk Kim, Kobayashi Yusuke, Wakabayashi Hikaru, Ishikawa Mariko, Fujii Shoko, Takahashi Satoru, Hirai Sakyo, Sumita Kazutaka. 頸動脈血行再建術の適応が考慮される患者における血清リポ蛋白(a)高値が頸動脈プラーク潰瘍形成に及ぼす影響(Influence of Elevated Serum Lipoprotein(a) on Carotid Artery Plaque Ulceration in Patients Considered for Carotid Revascularization) Journal of Atherosclerosis and Thrombosis. 2026.01; 33 (1): 99-108. ( ichushi )

Satoru Takahashi, Sakyo Hirai, Kyohei Fujita, Shoko Fujii, Hirotaka Sagawa, Mariko Ishikawa, Hikaru Wakabayashi, Kazutaka Sumita. Scanning Electron Microscopy Identification of Microscopic Onyx Fragments in Blood Aspirated from a Distal Access Catheter after Arteriovenous Malformation Embolization: A Case Report. J Neuroendovasc Ther. 2026; 20 (1): ( PubMed, DOI )

Kazutaka Sumita, Sakyo Hirai, Kyohei Fujita, Satoru Takahashi, Shoko Fujii, Hirotaka Sagawa, Hikaru Wakabayashi. Embolic Materials in Middle Meningeal Artery Embolization for Chronic Subdural Hematoma. J Neuroendovasc Ther. 2025.12; 19 (1): ( PubMed, DOI )

Yuki Kinoshita, Satoru Takahashi, Sakyo Hirai, Kyohei Fujita, Hikaru Wakabayashi, Bongguk Kim, Yusuke Kobayashi, Hirotaka Sagawa, Mariko Ishikawa, Shoko Fujii, Kazutaka Sumita. Effectiveness and Safety of Single Antiplatelet Therapy With Prasugrel in Carotid Artery Stenting. Vasc Endovascular Surg. 2025.11; 15385744251395138. ( PubMed, DOI )

Bongguk Kim, Shoko Fujii, Hirotaka Sagawa, Yuki Kinoshita, Hikaru Wakabayashi, Satoru Takahashi, Kyohei Fujita, Sakyo Hirai, Kazutaka Sumita. Safety and Technical Feasibility of Staged Flow Diverter Placement Following Coil Embolization: A Case Series Including Anatomically Challenging Aneurysms. J Neuroendovasc Ther. 2025.11; 19 (1): ( PubMed, DOI )

Satoru Takahashi, Sakyo Hirai, Kyohei Fujita, Kim Bongguk, Yuki Kinoshita, Hikaru Wakabayashi, Mariko Ishikawa, Hirotaka Sagawa, Shoko Fujii, Kazutaka Sumita. Scanning electron microscopy analysis of microcatheter inner lining damage and thrombogenesis in coil embolization. Interv Neuroradiol. 2025.09; 15910199251377132. ( PubMed, DOI )

Jun Karakama, Sakyo Hirai, Ryoichi Hanazawa, Masataka Yoshimura, Yohei Sato, Naoki Taira, Keigo Shigeta, Kana Sawada, Yoshihisa Kawano, Yoshiki Obata, Yosuke Ishii, Mariko Ishikawa, Mutsuya Hara, Motoshige Yamashina, Tadahiro Ishiwada, Hirotaka Sagawa, Satoru Takahashi, Hikaru Wakabayashi, Kyohei Fujita, Jiro Aoyama, Shoko Fujii, Akihiro Hirakawa, Shigeru Nemoto, Kazutaka Sumita. Delayed detection of in-hospital acute ischemic stroke: The impact of MRI and inpatient departments. Clin Neurol Neurosurg. 2025.09; 258 109151. ( PubMed, DOI )

Kobayashi Yusuke, Hirai Sakyo, Takahashi Satoru, Fujita Kyohei, Sagawa Hirotaka, Oyama Jun, Hada Hiroto, Wakabayashi Hikaru, Fujii Shoko, Sumita Kazutaka. 脊髄硬膜動静脈瘻患者におけるCT血管造影前のニトログリセリン舌下投与によるAdamkiewicz動脈の検出(Sublingual Nitroglycerin Administration before Computed Tomography Angiography for Detection of the Artery of Adamkiewicz in Patients with Spinal Dural Arteriovenous Fistula) JNET: Journal of Neuroendovascular Therapy. 2025.09; 19 (1): 92-97. ( ichushi )

Kyohei Fujita, Yuki Kinoshita, Hirotaka Sagawa, Kim Bongguk, Yusuke Kobayashi, Hikaru Wakabayashi, Mariko Ishikawa, Shoko Fujii, Satoru Takahashi, Sakyo Hirai, Kazutaka Sumita. Influence of Elevated Serum Lipoprotein(a) on Carotid Artery Plaque Ulceration in Patients Considered for Carotid Revascularization. J Atheroscler Thromb. 2025.08; ( PubMed, DOI )

Hirotaka Sagawa, Yuya Sakakura, Ryoichi Hanazawa, Satoru Takahashi, Hikaru Wakabayashi, Shoko Fujii, Kyohei Fujita, Sakyo Hirai, Akihiko Hirakawa, Kenichi Kono, Kazutaka Sumita. Novel artificial intelligence approach in neurointerventional practice: Preliminary findings on filter movement and ischemic lesions in carotid artery stenting. Clin Neurol Neurosurg. 2025.07; 254 108930. ( PubMed, DOI )

Yusuke Kobayashi, Sakyo Hirai, Satoru Takahashi, Kyohei Fujita, Hirotaka Sagawa, Jun Oyama, Hiroto Hada, Hikaru Wakabayashi, Shoko Fujii, Kazutaka Sumita. Sublingual Nitroglycerin Administration before Computed Tomography Angiography for Detection of the Artery of Adamkiewicz in Patients with Spinal Dural Arteriovenous Fistula. J Neuroendovasc Ther. 2025; 19 (1): ( PubMed, DOI )

Shoko Fujii, Kyohei Fujita, Mariko Ishikawa, Keigo Shigeta, Yuki Aizawa, Masataka Yoshimura, Shin Hirota, Kei Ito, Yoshikazu Yoshino, Kenji Yamada, Satoru Takahashi, Hirotaka Sagawa, Yuki Kinoshita, Yusuke Kobayashi, Sakyo Hirai, Kazutaka Sumita. Postoperative Time-of-Flight Magnetic Resonance Angiography Classification is a Predictor of Postoperative Recanalization of Unruptured Cerebral Aneurysms. World Neurosurg. 2024.12; 194 123496. ( PubMed, DOI )

Shoko Fujii, Kyohei Fujita, Sakyo Hirai, Satoru Takahashi, Hirofumi Matsubara, Kenji Shoda, Akira Ishii, Makoto Sakamoto, Ichiro Nakagawa, Toshio Higashi, Shinichi Yoshimura, Kazutaka Sumita, Yukiko Enomoto. Evaluating the Safety of Stent-Assisted Endovascular Treatment for Unruptured Cerebral Aneurysms in Older Adults: Emphasizing the Role of Antiplatelet Therapy. Cerebrovasc Dis. 2024.10; 54 (5): 1-10. ( PubMed, DOI )

Mariko Ishikawa, Satoru Takahashi, Sakyo Hirai, Yohei Sato, Keigo Shigeta, Masataka Yoshimura, Toshihiro Yamamura, Naoki Taira, Tadahiro Ishiwada, Jun Karakama, Kana Sawada, Yoshiki Obata, Kenji Yamada, Yoshikazu Yoshino, Yosuke Ishii, Hikaru Wakabayashi, Kyohei Fujita, Shoko Fujii, Hirotaka Sagawa, Shigeru Nemoto, Taketoshi Maehara, Kazutaka Sumita. Efficacy of endovascular treatment for distal anterior cerebral artery aneurysms: A multicenter observational study. J Stroke Cerebrovasc Dis. 2024.08; 33 (11): 107941. ( PubMed, DOI )

Hirai S, Fujita K, Fujii S, Takahashi S, Shigeta K, Karakama J, Enomoto Y, Sato Y, Yoshimura M, Hirota S, Mizoue T, Yoshino Y, Kawano Y, Yamamura T, Kohyama S, Hirohata M, Yoshimura S, Ishii Y, Yamauchi T, Taira N, Obata Y, Sakamoto M, Inoue M, Yamashina M, Tokunaga S, Higashi T, Sawada K, Mochida H, Ido K, Takeuchi M, Takigawa T, Takagi Y, Morimoto M, Nanto M, Miki K, Misaki K, Arimura K, Hanaoka Y, Hara M, Hara S, Yokoyama K, Ooyama J, Hanazawa R, Sato H, Hirakawa A, Ishiguro M, Nemoto S, Sumita K. Study protocol of the ASTOP trial: A multicenter, randomized, double-blind, placebo-controlled trial of presurgical aspirin administration for the prevention of thromboembolic complications of coil embolization for ruptured aneurysms. PloS one. 2024.08; 19 (9): e0310906. ( PubMed, DOI )

Sakyo Hirai, Ryoichi Hanazawa, Masataka Yoshimura, Keigo Shigeta, Yohei Sato, Naoki Taira, Yoshihisa Kawano, Jun Karakama, Yoshiki Obata, Mutsuya Hara, Kenji Yamada, Yosuke Ishii, Kana Sawada, Shogo Imae, Hikaru Wakabayashi, Hirotaka Sagawa, Kyohei Fujita, Shoko Fujii, Satoru Takahashi, Akihiro Hirakawa, Shigeru Nemoto, Kazutaka Sumita. Safety and Efficacy of Management for Intraprocedural Rupture During Endovascular Treatment for Intracranial Aneurysms. Neurosurgery. 2024.08; 96 (3): 568-576. ( PubMed, DOI )

Yamaoka H, Hirai S, Hanazawa R, Yoshimura M, Hayashi T, Kaneoka A, Yamada K, Yoshino Y, Ebiko Y, Yamamura T, Ishikawa M, Sagawa H, Aoyama J, Fujii S, Fujita K, Kawano Y, Hirakawa A, Sumita K. A thoracic CT imaging parameter predicting access difficulty in acute stroke thrombectomy. Clinical neurology and neurosurgery. 2024.07; 244 108453. ( PubMed, DOI )

Shin Hirota, Kyohei Fujita, Tadahiro Ishiwada, Satoru Takahashi, Sakyo Hirai, Hirotaka Sagawa, Hikaru Wakabayashi, Jiro Aoyama, Shoko Fujii, Hiroto Yamaoka, Masataka Yoshimura, Keigo Shigeta, Yohei Sato, Kana Sawada, Kenji Yamada, Toshihiro Yamamura, Yosuke Ishii, Yoshiki Obata, Mutsuya Hara, Yoshihisa Kawano, Shinji Yamamoto, Shigeru Nemoto, Kazutaka Sumita, . Contact aspiration for basilar artery occlusion safely reduces the puncture-to-recanalization time. Clin Neurol Neurosurg. 2024.05; 242 108331. ( PubMed, DOI )

Aoyama Jiro, Iha Hiroto, Ishikawa Mariko, Sagawa Hirotaka, Hirai Sakyo, Fujita Kyohei, Fujii Shoko, Sumita Kazutaka. COVID-19ワクチンに関連した脳静脈洞血栓症に伴う硬膜動静脈瘻の1例(A Case of Dural Arteriovenous Fistula Following Cerebral Venous Sinus Thrombosis Associated with the COVID-19 Vaccine) JNET: Journal of Neuroendovascular Therapy. 2024.03; 18 (1-3): 24-28. ( ichushi )

Kyohei Fujita, Yohei Sato, Ryoichi Hanazawa, Hirotaka Sagawa, Mariko Ishikawa, Shoko Fujii, Jiro Aoyama, Sakyo Hirai, Masataka Yoshimura, Yoshikazu Yoshino, Yoshihisa Kawano, Keigo Shigeta, Naoki Taira, Jun Karakama, Tadahiro Ishiwada, Motoshige Yamashina, Akihiko Hirakawa, Kazutaka Sumita. Impact of cancer history on long-term outcome after elective neuro-endovascular treatment in patients aged 80 years or older: A retrospective multicenter observational study. Geriatr Gerontol Int. 2024.02; 24 (2): 211-217. ( PubMed, DOI )

Jun Karakama, Mariko Ishikawa, Sakyo Hirai, Satoru Takahashi, Hikaru Wakabayashi, Hirotaka Sagawa, Shoko Fujii, Kyohei Fujita, Nobuyuki Hirotsune, Kazutaka Sumita. Successful Retrieval of Filter Embolic Protection Device Fragment Trapped by a Carotid Stent: A Case Report. J Neuroendovasc Ther. 2024.02; 18 (2): 53-57. ( PubMed, DOI )

Satoru Takahashi, Mariko Ishikawa, Hirotaka Sagawa, Hikaru Wakabayashi, Shoko Fujii, Kyohei Fujita, Jiro Aoyama, Sakyo Hirai, Kazutaka Sumita. Delayed hydrocephalus and visual field defect due to perianeurysmal inflammation after treating a large unruptured aneurysm with flow diverter and coil: A case report. Clin Neurol Neurosurg. 2024.02; 237 108130. ( PubMed, DOI )

Fujita Kyohei, Sato Yohei, Hanazawa Ryoichi, Sagawa Hirotaka, Ishikawa Mariko, Fujii Shoko, Aoyama Jiro, Hirai Sakyo, Yoshimura Masataka, Yoshino Yoshikazu, Kawano Yoshihisa, Shigeta Keigo, Taira Naoki, Karakama Jun, Ishiwada Tadahiro, Yamashina Motoshige, Hirakawa Akihiko, Sumita Kazutaka. 80歳以上の患者における待機的神経血管内治療後の長期転帰に対する癌病歴の影響　後ろ向き多施設共同観察研究(Impact of cancer history on long-term outcome after elective neuro-endovascular treatment in patients aged 80 years or older: A retrospective multicenter observational study) Geriatrics & Gerontology International. 2024.02; 24 (2): 211-217. ( ichushi )

Aoyama J, Hirai S, Ishikawa M, Sagawa H, Fujita K, Fujii S, Nakano T, Ogishima T, Sato Y, Sakai R, Yoshimura M, Ishiwada T, Sumita K. Endovascular Treatment for Ruptured Proximal Anterior Cerebral Artery Dissecting Aneurysm: A Case Series. Turkish neurosurgery. 2024; 34 (4): 728-732. ( PubMed, DOI )

Fujii S, Hirai S, Fujita K, Yamaoka H, Ishikawa M, Aoyama J, Sagawa H, Miki K, Nemoto S, Sumita K. Two-Step Effective Onyx Embolization from the Occipital Artery for the Treatment of Intracranial Dural Arteriovenous Fistula: A Technical Note. Turkish neurosurgery. 2024; 34 (3): 529-534. ( PubMed, DOI )

2. Hirota S, Takahashi S, Yoshimura M, Hirai S, Takei T, Orihara A, Sagawa H, Wakabayashi H, Fujii S, Yamamoto S, Sumita K. Mechanical thrombectomy and parent artery occlusion for acute basilar artery occlusion due to vertebral fracture and vertebral artery dissection: a case report. JNET. 2023.08;

Sakyo Hirai, Akihiro Hirakawa, Kyohei Fujita, Tadahiro Ishiwada, Masanao Sasaki, Masataka Yoshimura, Keigo Shigeta, Yohei Sato, Kenji Yamada, Mariko Ishikawa, Hirotaka Sagawa, Jiro Aoyama, Shoko Fujii, Yosuke Ishii, Kana Sawada, Yoshiki Obata, Jun Karakama, Mutsuya Hara, Yoshihisa Kawano, Shigeru Nemoto, Kazutaka Sumita. Imaging predictors of clinical outcomes after endovascular treatment in MRI-selected patients with acute basilar artery occlusion. Clinical neurology and neurosurgery . 2023.08; 231 107824. ( PubMed, DOI )

Aoyama J, Hirai S, Ishikawa M, Sagawa H, Nakano T, Ogishima T, Sato Y, Sakai R, Yoshimura M, Ishiwada T, Sumita K. Endovascular treatment for ruptured proximal anterior cerebral artery dissecting aneurysm: A report of five case series. Turkish Neurosurgery. 2023.08;

3. Fujii S, Hirai S, Fujita K, Yamaoka H, Ishikawa M, Aoyama J, Sagawa H, Miki K, Nemoto S, Sumita K. Two-step effective Onyx embolization from the occipital artery for the treatment of intracranial dural arteriovenous fistula: a technical note. Turkish Neurosurgery. 2023.08;

Sakyo Hirai , Mariko Ishikawa , Hirotaka Sagawa , Jiro Aoyama , Kyohei Fujita , Shoko Fujii , Hikaru Wakabayashi , Satoru Takahashi , Kazutaka Sumita. Ghost twisting of the dual-layer flow-diverting stent Neuroradiology. 2023.08; 65 (11): 1669-1672. ( PubMed, DOI )

Shin Hirota, Satoru Takahashi, Masataka Yoshimura, Sakyo Hirai, Takamaro Takei, Asumi Orihara, Hirotaka Sagawa, Hikaru Wakabayashi, Shoko Fuji, Shinji Yamamoto, Kazutaka Sumita. Mechanical Thrombectomy and Parent Artery Occlusion for Acute Basilar Artery Occlusion Due to Vertebral Fracture and Artery Dissection: A Case Report. J Neuroendovasc Ther. 2023.08; 17 (12): 286-292. ( PubMed, DOI )

Hirotaka Sagawa, Shoko Fujii, Kyohei Fujita, Sakyo Hirai, Hiroto Yamaoka, Mariko Ishikawa, Jiro Aoyama, Kazutaka Sumita. A case study of the disconnected dual taper tip of the Wingspan stent during percutaneous transluminal angioplasty and stenting of the vertebral artery Clinical Neurology and Neurosurgery. 2023.07; 230 107774. ( PubMed, DOI )

Ishiwada Tadahiro, Fujita Kyohei, Hirai Sakyo, Fujii Shoko, Yamaoka Hiroto, Ishikawa Mariko, Yoshimura Masataka, Shigeta Keigo, Sato Yohei, Sawada Kana, Yamada Kenji, Yamamura Toshihiro, Ishii Yosuke, Obata Yoshiki, Tone Osamu, Hara Mutsuya, Kawano Yoshihisa, Aoyagi Masaru, Nemoto Shigeru, Maehara Taketoshi, Sumita Kazutaka. Influence of Bilateral Cerebellar Infarction on Functional Outcome After Endovascular Treatment for Basilar Artery Occlusion WORLD NEUROSURGERY. 2023.03; 171 E506-E515. ( PubMed, DOI )

Aoyama J, Iha H, Ishikawa M, Sagawa H, Hirai S, Fujita K, Fujii S, Sumita K. A Case of Dural Arteriovenous Fistula Following Cerebral Venous Sinus Thrombosis Associated with the COVID-19 Vaccine. Journal of neuroendovascular therapy. 2023; 18 (1): 24-28. ( PubMed, DOI )

Fujita K, Fujii S, Hirai S, Yamaoka H, Ishikawa M, Karakama J, Miki K, Yoshimura M, Nemoto S, Sumita K. P2Y12 reaction units and ischemic and bleeding events after neuro-endovascular treatment. Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association. 2022.09; 31 (9): 106631. ( PubMed, DOI )

Ueno Hiroshi, Yamaoka Hiroto, Hirai Sakyo, Fujita Kyohei, Ishikawa Mariko, Fujii Shoko, Aizawa Yuki, Ishii Yosuke, Yoshimura Masataka, Yamada Kenji, Yoshino Yoshikazu, Kurata Morito, Seto Katsutoshi, Ishibashi Hironori, Okubo Kenichi, Nemoto Shigeru, Sumita Kazutaka. Endovascular treatment for acute ischemic stroke after video-assisted thoracoscopic pulmonary lobectomy in patients with lung cancer: A report of four cases and literature review JOURNAL OF STROKE & CEREBROVASCULAR DISEASES. 2022.08; 31 (8): 106593. ( PubMed, DOI )

Sakyo Hirai, Hirotaka Sato, Toshihiro Yamamura, Koichi Kato, Mariko Ishikawa, Hirotaka Sagawa, Jiro Aoyama, Shoko Fujii, Kyohei Fujita, Toshinari Arai, Kazutaka Sumita. Correlation between the CT Perfusion Parameter Values and Response to Recanalization in Patients with Acute Ischemic Stroke. J Neuroendovasc Ther. 2022; 16 (12): 577-585. ( PubMed, DOI )

Yamaoka H, Fujita K, Fujii S, Ayabe F, Karakama J, Hirai S, Yoshimura M, Yamamoto S, Nemoto S, Sumita K. Clinical Course of Abducens Nerve Palsy in Patients with Ruptured Vertebral Artery Dissecting Aneurysms. Journal of neuroendovascular therapy. 2022; 16 (7): 339-345. ( PubMed, DOI )

Hiroto Yamaoka, Kyohei Fujita, Shoko Fujii, Fuga Ayabe, Jun Karakama, Sakyo Hirai, Masataka Yoshimura, Shinji Yamamoto, Shigeru Nemoto, Kazutaka Sumita. Clinical Course of Abducens Nerve Palsy in Patients with Ruptured Vertebral Artery Dissecting Aneurysms Journal of Neuroendovascular Therapy. 2021.10;

Kyohei Fujita,Shoko Fujii,Hiroto Yamaoka,Fuga Ayabe,Sakyo Hirai,Kittipong Srivatanakul,Kazutaka Sumita. Results of an International Questionnaire Investigating Changes in Acute Stroke Management between Before and During the COVID-19 Pandemic Journal of Neuroendovascular Therapy. 2021.08; 15 (8): 498-504. ( DOI )

Fujii S, Fujita K, Yamaoka H, Miki K, Hirai S, Nemoto S, Sumita K. Refractory in-stent stenosis after flow diverter stenting associated with delayed cobalt allergic reaction. Journal of neurointerventional surgery. 2021.08; ( PubMed, DOI )

Fujita Kyohei, Fujii Shoko, Yamaoka Hiroto, Ayabe Fuga, Hirai Sakyo, Srivatanakul Kittipong, Sumita Kazutaka. COVID-19パンデミック前とパンデミック期における急性脳卒中への対応の変化を調査した国際質問紙調査の結果(【COVID-19 and Neurovascular Therapy】Results of an International Questionnaire Investigating Changes in Acute Stroke Management between Before and During the COVID-19 Pandemic) JNET: Journal of Neuroendovascular Therapy. 2021.08; 15 (8): 498-504. ( PubMed, ichushi )

Refractory in-stent stenosis after flow diverter stenting associated with delayed cobalt allergic reaction Journal of Neurointerventional Surgery. 2021.08;

Hirai S, Tanaka Y, Sato H, Kato K, Kim Y, Yamamura T, Sumita K, Arai T. Quantitative collateral assessment evaluated by cerebral blood volume measured by CT perfusion in patients with acute ischemic stroke. Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association. 2021.07; 30 (7): 105797. ( PubMed, DOI )

Quantitative collateral assessment evaluated by cerebral blood volume measured by CT perfusion in patients with acute ischemic stroke. Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association. 2021.07;

Sato A, Hirai S, Obata Y, Maehara T, Aoyagi M. Muscular-stage Dissection during Far Lateral Approach and Its Transcondylar Extension. Journal of neurological surgery. Part B, Skull base. 2018.10; 79 (Suppl 4): S356-S361. ( PubMed, DOI )

Muscular-stage Dissection during Far Lateral Approach and Its Transcondylar Extension. Journal of neurological surgery. Part B, Skull base. 2018.10;

Hirai S, Inaji M, Tanaka Y, Hara S, Nariai T, Maehara T. Correlation between Clinical Presentations and Hemodynamic Parameters Measured by Dynamic Susceptibility Contrast Magnetic Resonance Imaging in Adult Patients with Moyamoya Disease. Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association. 2017.12; 26 (12): 2814-2820. ( PubMed, DOI )

Hirai S, Saigusa K, Norisue Y, Nemoto S. Cerebral hyperperfusion syndrome after endovascular covered stent grafting for a giant extracranial aneurysm of the internal carotid artery. Journal of vascular surgery cases. 2015.03; 1 (1): 46-49. ( PubMed, DOI )

Cerebral hyperperfusion syndrome after endovascular covered stent grafting for a giant extracranial aneurysm of the internal carotid artery. Journal of vascular surgery cases. 2015.03;

Intraosseous cystic cavernous angioma with occipital skull osteolysis. Interdiciplinary neurosurgery. 2014;