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  • Koji Iihara
2020

A case of diffuse midline glioma, H3 K27M mutant mimicking a hemispheric malignant glioma in an elderly patient

Fujioka, Y., Hata, N., Hatae, R., Suzuki, S. O., Sangatsuda, Y., Nakahara, Y., Mizoguchi, M. & Iihara, K., Feb 1 2020, In : Neuropathology. 40, 1, p. 99-103 5 p.

Research output: Contribution to journalArticle

Coil embolization for unruptured intracranial aneurysms at the dawn of stent era: Results of the Japanese registry of neuroendovascular therapy (JR-NET) 3

Satow, T., Ikeda, G., Takahashi, J. C., Iihara, K. & Sakai, N., Jan 1 2020, In : Neurologia medico-chirurgica. 60, 2, p. 55-65 11 p.

Research output: Contribution to journalArticle

Open Access

Effectiveness of staged angioplasty for avoidance of cerebral hyperperfusion syndrome after carotid revascularization

Hayakawa, M., Sugiu, K., Yoshimura, S., Hishikawa, T., Yamagami, H., Fukuda-Doi, M., Sakai, N., Iihara, K., Ogasawara, K., Oishi, H., Ito, Y. & Matsumaru, Y., Jan 1 2020, In : Journal of Neurosurgery. 132, 1, p. 51-61 11 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

First-line bevacizumab contributes to survival improvement in glioblastoma patients complementary to temozolomide

Hata, N., Mizoguchi, M., Kuga, D., Hatae, R., Akagi, Y., Sangatsuda, Y., Amemiya, T., Michiwaki, Y., Fujioka, Y., Takigawa, K., Suzuki, S. O., Yoshitake, T., Togao, O., Hiwatashi, A., Yoshimoto, K. & Iihara, K., Feb 1 2020, In : Journal of Neuro-Oncology. 146, 3, p. 451-458 8 p.

Research output: Contribution to journalArticle

Long-term Outcomes After Intraprocedural Aneurysm Rupture During Coil Embolization of Unruptured Intracranial Aneurysms

Yamagami, K., Hatano, T., Nakahara, I., Ishii, A., Ando, M., Chihara, H., Ogura, T., Suzuki, K., Kondo, D., Kamata, T., Higashi, E., Sakai, S., Sakamoto, H., Iihara, K. & Nagata, I., Feb 2020, In : World Neurosurgery. 134, p. e289-e297

Research output: Contribution to journalArticle

Propensity Score Matching Analysis for the Patients of Unruptured Cerebral Aneurysm from a Post Hoc Analysis of a Nationwide Database in Japan

Ikawa, F., Michihata, N., Akiyama, Y., Iihara, K., Morita, A., Kato, Y., Yamaguchi, S., Kurisu, K., Fushimi, K. & Yasunaga, H., Jan 1 2020, (Accepted/In press) In : World Neurosurgery.

Research output: Contribution to journalArticle

Risk Management of Aneurysmal Subarachnoid Hemorrhage by Age and Treatment Method from a Nationwide Database in Japan

Ikawa, F., Michihata, N., Iihara, K., Akiyama, Y., Morita, A., Fushimi, K., Yasunaga, H. & Kurisu, K., Feb 2020, In : World Neurosurgery. 134, p. e55-e67

Research output: Contribution to journalArticle

The current status of endovascular treatment for extracranial steno-occlusive diseases in Japan: Analysis using the japanese registry of neuroendovascular therapy 3 (jr-net3)

Japanese Registry of Neuroendovascular Therapy investigators, Jan 1 2020, In : Neurologia medico-chirurgica. 60, 1, p. 1-9 9 p.

Research output: Contribution to journalArticle

Open Access

The effects of chronic subthalamic stimulation on nonmotor symptoms in advanced Parkinson’s disease, revealed by an online questionnaire program

Kawaguchi, M., Samura, K., Miyagi, Y., Okamoto, T., Yamasaki, R., Sakae, N., Yoshida, F. & Iihara, K., Feb 1 2020, In : Acta Neurochirurgica. 162, 2, p. 247-255 9 p.

Research output: Contribution to journalArticle

Variant Type of Posterior Reversible Encephalopathy Syndrome Associated with Deep Brain Hemorrhage: Case Report and Review of the Literature

Yamagami, K., Maeda, Y. & Iihara, K., Feb 2020, In : World Neurosurgery. 134, p. 176-181 6 p.

Research output: Contribution to journalArticle

2019

Acceleration-selective arterial spin labeling MR angiography for visualization of brain arteriovenous malformations

Togao, O., Hiwatashi, A., Yamashita, K., Momosaka, D., Obara, M., Nishimura, A., Arimura, K., Hata, N., Iihara, K., Van Cauteren, M. & Honda, H., Sep 1 2019, In : Neuroradiology. 61, 9, p. 979-989 11 p.

Research output: Contribution to journalArticle

A comparison of the prevalence and risk factors of complications in intracranial tumor embolization between the Japanese Registry of NeuroEndovascular Therapy 2 (JR-NET2) and JR-NET3

on behalf of the JR-NET2 and JR-NET3 study groups, Aug 1 2019, In : Acta Neurochirurgica. 161, 8, p. 1675-1682 8 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Changing paradigms of periprocedural antithrombotic therapy in neuroendovascular therapy: Analysis of JR-NET 3

Japanese Registry of Neuroendovascular Therapy (JR-NET) investigators, Jan 1 2019, In : Neurologia medico-chirurgica. 59, 7, p. 247-256 10 p.

Research output: Contribution to journalArticle

Open Access

Characteristics of cerebral aneurysms in Japan

Ikawa, F., Hidaka, T., Yoshiyama, M., Ohba, H., Matsuda, S., Ozono, I., Iihara, K., Kinouchi, H., Nozaki, K., Kato, Y., Morita, A., Michihata, N., Yasunaga, H. & Kurisu, K., Jan 1 2019, In : Neurologia medico-chirurgica. 59, 11, p. 399-406 8 p.

Research output: Contribution to journalArticle

Open Access
1 Citation (Scopus)

Clinical characteristics and endovascular treatment for spinal dural arteriovenous fistula in Japan: Japanese registry of neuroendovascular therapy 2 and 3

Tsuruta, W., Matsumaru, Y., Iihara, K., Satow, T., Sakai, N., Katsumata, M., Hosoo, H., Sato, M., Ito, Y., Marushima, A., Hayakawa, M., Ishikawa, E. & Matsumura, A., Jan 1 2019, In : Neurologia medico-chirurgica. 59, 12, p. 492-497 6 p.

Research output: Contribution to journalArticle

Open Access
Open Access
2 Citations (Scopus)
Open Access

Correlation between prognosis of glioblastoma and choline/N-acetyl aspartate ratio in MR spectroscopy

Akagi, Y., Noguchi, N., Hata, N., Hatae, R., Michiwaki, Y., Sangatsuda, Y., Amemiya, T., Kuga, D., Yamashita, K., Togao, O., Hiwatashi, A., Yoshimoto, K., Mizoguchi, M. & Iihara, K., Dec 2019, In : Interdisciplinary Neurosurgery: Advanced Techniques and Case Management. 18, 100498.

Research output: Contribution to journalArticle

Open Access

Development of quality indicators of stroke centers and feasibility of their measurement using a nationwide insurance claims database in Japan ― J-ASPECT study ―

Nishimura, A., Nishimura, K., Onozuka, D., Matsuo, R., Kada, A., Kamitani, S., Higashi, T., Ogasawara, K., Shimodozono, M., Harada, M., Hashimoto, Y., Hirano, T., Hoshino, H., Itabashi, R., Itoh, Y., Iwama, T., Kohriyama, T., Matsumaru, Y., Osato, T., Sasaki, M. & 18 others, Shiokawa, Y., Shimizu, H., Takekawa, H., Nishi, T., Uno, M., Yagita, Y., Ido, K., Kurogi, A., Kurogi, R., Arimura, K., Ren, N., Hagihara, A., Takizawa, S., Arai, H., Kitazono, T., Miyamoto, S., Minematsu, K. & Iihara, K., Jan 1 2019, In : Circulation Journal. 83, 11, p. 2292-2302 11 p.

Research output: Contribution to journalArticle

Open Access

Differences between primary central nervous system lymphoma and glioblastoma: topographic analysis using voxel-based morphometry

Yamashita, K., Hiwatashi, A., Togao, O., Kikuchi, K., Momosaka, D., Hata, N., Akagi, Y., Suzuki, S. O., Iwaki, T., Iihara, K. & Honda, H., Oct 2019, In : Clinical Radiology. 74, 10, p. 816.e1-816.e8

Research output: Contribution to journalArticle

Distribution and current problems of acute endovascular therapy for large artery occlusion from a two-year national survey in Japan

Takagi, T., Yoshimura, S., Sakai, N., Iihara, K., Oishi, H., Hirohata, M., Matsumaru, Y., Matsumoto, Y., Yamagami, H., Menon, B. K., Almekhlafi, M., Holodinsky, J. K., Kamal, N., Hill, M. D. & Goyal, M., Jan 1 2019, (Accepted/In press) In : International Journal of Stroke.

Research output: Contribution to journalArticle

Open Access
1 Citation (Scopus)

Haptoglobin genotype and aneurysmal subarachnoid hemorrhage individual patient data analysis

Gaastra, B., Ren, D., Alexander, S., Bennett, E. R., Bielawski, D. M., Blackburn, S. L., Borsody, M. K., Doré, S., Galea, J., Garland, P., He, T., Iihara, K., Kawamura, Y., Leclerc, J. L., Meschia, J. F., Pizzi, M. A., Tamargo, R. J., Yang, W., Nyquist, P. A., Bulters, D. O. & 1 others, Galea, I., Apr 30 2019, In : Neurology. 92, 18, p. E2150-E2164

Research output: Contribution to journalArticle

4 Citations (Scopus)

Human tail-like cutaneous appendage with a contiguous stalk of limited dorsal myeloschisis

Sarukawa, M., Morioka, T., Murakami, N., Shimogawa, T., Mukae, N., Kuga, N., Suzuki, S. O. & Iihara, K., Jun 1 2019, In : Child's Nervous System. 35, 6, p. 973-978 6 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Inhibition of glioblastoma cell invasion by hsa-miR-145-5p and hsa-miR-31-5p co-overexpression in human mesenchymal stem cells

Kurogi, R., Nakamizo, A., Suzuki, S. O., Mizoguchi, M., Yoshimoto, K., Amano, T., Amemiya, T., Takagishi, S. & Iihara, K., Jan 2019, In : Journal of Neurosurgery. 130, 1, p. 44-55 12 p.

Research output: Contribution to journalArticle

In-hospital mortality and poor outcome after surgical clipping and endovascular coiling for aneurysmal subarachnoid hemorrhage using nationwide databases: a systematic review and meta-analysis

Ikawa, F., Michihata, N., Matsushige, T., Abiko, M., Ishii, D., Oshita, J., Okazaki, T., Sakamoto, S., Kurogi, R., Iihara, K., Nishimura, K., Morita, A., Fushimi, K., Yasunaga, H. & Kurisu, K., Jan 1 2019, In : Neurosurgical Review.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Intravoxel incoherent motion MR imaging of pediatric intracranial tumors: Correlation with histology and diagnostic utility

Kikuchi, K., Hiwatashi, A., Togao, O., Yamashita, K., Kamei, R., Momosaka, D., Hata, N., Iihara, K., Suzuki, S. O., Iwaki, T. & Honda, H., Jan 1 2019, In : American Journal of Neuroradiology. 40, 5, p. 878-884 7 p.

Research output: Contribution to journalArticle

Open Access

Japanese surveillance of neuroendovascular therapy in JR-NET - part ii. Japanese registry of neuroendovascular treatment 3. main report

Japanese Registry of Neuroendovascular Therapy (JR-NET) investigators, Jan 1 2019, In : Neurologia medico-chirurgica. 59, 3, p. 106-115 10 p.

Research output: Contribution to journalArticle

Open Access
3 Citations (Scopus)

Microsurgical anatomy of the jugular process as an anatomical landmark to access the jugular foramen: A cadaveric and radiological study

Komune, N., Matsuo, S., Miki, K., Matsushima, K., Akagi, Y., Kurogi, R., Iihara, K., Matsushima, T., Inoue, T. & Nakagawa, T., Jan 1 2019, In : Operative Neurosurgery. 16, 4, p. 486-495 10 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

National trends in outcomes of ischemic stroke and prognostic influence of stroke center capability in Japan, 2010–2016

on behalf of the J-ASPECT Study Collaborators, Jan 1 2019, (Accepted/In press) In : International Journal of Stroke.

Research output: Contribution to journalArticle

Parent artery occlusion for unruptured cerebral aneurysms: Results of the Japanese registry of neuroendovascular therapy 3

Japanese Registry of Neuroendovascular Therapy (JR-NET) investigators, Jan 1 2019, In : Neurologia medico-chirurgica. 59, 1, p. 1-9 9 p.

Research output: Contribution to journalArticle

Patient-tailored classification for a NIRS triggered hand rehabilitation robot

Takemura, S., Lee, J., Mukae, N., Kiguchi, K., Iihara, K., Hashizume, M. & Arata, J., Jan 14 2019, 2018 IEEE International Conference on Cyborg and Bionic Systems, CBS 2018. Institute of Electrical and Electronics Engineers Inc., p. 632-636 5 p. 8612169. (2018 IEEE International Conference on Cyborg and Bionic Systems, CBS 2018).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Predicting TERT promoter mutation using MR images in patients with wild-type IDH1 glioblastoma

Yamashita, K., Hatae, R., Hiwatashi, A., Togao, O., Kikuchi, K., Momosaka, D., Yamashita, Y., Kuga, D., Hata, N., Yoshimoto, K., Suzuki, S. O., Iwaki, T., Iihara, K. & Honda, H., Jul 1 2019, In : Diagnostic and Interventional Imaging. 100, 7-8, p. 411-419 9 p.

Research output: Contribution to journalArticle

Predictors of recurrence and postoperative outcomes in patients with non-skull base meningiomas based on modern neurosurgical standards

Michiwaki, Y., Hata, N., Amano, T., Suzuki, S. O., Akagi, Y., Kuga, D., Onozuka, D., Momosaki, S., Nakamizo, A., Yoshimoto, K., Iwaki, T. & Iihara, K., Mar 1 2019, In : Interdisciplinary Neurosurgery: Advanced Techniques and Case Management. 15, p. 30-37 8 p.

Research output: Contribution to journalArticle

Quality Management Program of Stroke Rehabilitation Using Adherence to Guidelines: A Nationwide Initiative in Japan

Miura, S., Miyata, R., Matsumoto, S., Higashi, T., Wakisaka, Y., Ago, T., Kitazono, T., Iihara, K. & Shimodozono, M., Sep 2019, In : Journal of Stroke and Cerebrovascular Diseases. 28, 9, p. 2434-2441 8 p.

Research output: Contribution to journalArticle

Rapid growth of metastatic brain tumor from gastric undifferentiated pleomorphic sarcoma: A case report

Miki, K., Yoshimoto, K., Yamada, Y., Kabashima, A., Kuga, D., Oda, Y. & Iihara, K., Apr 24 2019, In : Surgical Neurology International. 10, 74, p. 1-4 4 p.

Research output: Contribution to journalArticle

Real-world experience of carotid artery stenting in Japan: Analysis of 8458 cases from the JR-NET3 nationwide retrospective multi-center registries

The Japanese Registry of NeuroEndovascular Therapy (JR-NET) investigators, Jan 1 2019, In : Neurologia medico-chirurgica. 59, 4, p. 117-125 9 p.

Research output: Contribution to journalArticle

Open Access
1 Citation (Scopus)

Safety and efficacy of an open-cell stent and double-balloon protection for unstable plaques: Analysis of 184 consecutive carotid artery stentings

Funakoshi, Y., Imamura, H., Tani, S., Adachi, H., Fukumitsu, R., Sunohara, T., Omura, Y., Matsui, Y., Sasaki, N., Fukuda, T., Akiyama, R., Horiuchi, K., Kajiura, S., Shigeyasu, M., Iihara, K. & Sakai, N., Jan 1 2019, (Accepted/In press) In : Journal of neurointerventional surgery.

Research output: Contribution to journalArticle

Safety and feasibility of neuroendovascular therapy for elderly patients: Analysis of Japanese registry of neuroendovascular therapy 3

Arimura, K., Iihara, K., Satow, T., Nishimura, A., Tokunaga, S. & Sakai, N., Jan 1 2019, In : Neurologia medico-chirurgica. 59, 8, p. 305-312 8 p.

Research output: Contribution to journalArticle

Open Access

Small vessel occlusion is a high-risk etiology for early recurrent stroke after transient ischemic attack

on Behalf of the PROMISE-TIA Study Investigators, Dec 1 2019, In : International Journal of Stroke. 14, 9, p. 871-877 7 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)
Open Access

Stroke during pregnancy and puerperium among Japanese women: a single-center registry

Katsuragi, S., Suzuki, R., Toyoda, K., Neki, R., Miyamoto, S., Iihara, K., Takahashi, J., Ikeda, T. & Yoshimatsu, J., Jan 1 2019, (Accepted/In press) In : Journal of Maternal-Fetal and Neonatal Medicine.

Research output: Contribution to journalArticle

Surgical histopathology of limited dorsal myeloschisis with flat skin lesion

Morioka, T., Suzuki, S. O., Murakami, N., Mukae, N., Shimogawa, T., Haruyama, H., Kira, R. & Iihara, K., Jan 29 2019, In : Child's Nervous System. 35, 1, p. 119-128 10 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

The Influence of Age on the Outcomes of Traumatic Brain Injury: Findings from a Japanese Nationwide Survey (J-ASPECT Study-Traumatic Brain Injury)

J-ASPECT Study Collaborators, Oct 2019, In : World Neurosurgery. 130, p. e26-e46

Research output: Contribution to journalArticle

1 Citation (Scopus)

Treatment outcome of intracranial tumor embolization in Japan: Japanese registry of neuroendovascular therapy 3 (JR-NET3)

Sugiu, K., Hishikawa, T., Murai, S., Takahashi, Y., Kidani, N., Nishihiro, S., Hiramatsu, M., Date, I., Satow, T., Iihara, K. & Sakai, N., Jan 1 2019, In : Neurologia medico-chirurgica. 59, 2, p. 41-47 7 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Treatment Risk for Elderly Patients with Unruptured Cerebral Aneurysm from a Nationwide Database in Japan

Ikawa, F., Michihata, N., Akiyama, Y., Iihara, K., Matano, F., Morita, A., Kato, Y., Iida, K., Kurisu, K., Fushimi, K. & Yasunaga, H., Dec 2019, In : World Neurosurgery. 132, p. e89-e98

Research output: Contribution to journalArticle

1 Citation (Scopus)

Utility of Complementary Magnetic Resonance Plaque Imaging and Contrast-Enhanced Ultrasound to Detect Carotid Vulnerable Plaques

Motoyama, R., Saito, K., Tonomura, S., Ishibashi-Ueda, H., Yamagami, H., Kataoka, H., Morita, Y., Uchihara, Y., Iihara, K., Takahashi, J. C., Sugie, K., Toyoda, K. & Nagatsuka, K., Apr 16 2019, In : Journal of the American Heart Association. 8, 8, e011302.

Research output: Contribution to journalArticle

Open Access
1 Citation (Scopus)