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Master's Program Human Sciences, Graduate School of Medicine
Doctor's Program Biomedical Engineering Division, Department of Biomedical Engineering, Graduate School of Medicine, Science and Technology

Staff List

Professor HORIUCHI Tetsuyoshi
Associate Professor HANAOKA Yoshiki
Senior Assistant Professor KANAYA Kohei, FUJII Yu
Assistant Professor NAKAMURA Takuya, SUZUKI Yota,


E-mail : neuros8(at)
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Summary of Activity

At the Department of Neurosurgery, Shinshu University School of Medicine, we conduct surgical treatment for cerebrovascular disorder, brain tumors, epilepsy, etc. with a consistent treatment policy using "as less as reasonable achievable (ALARA) surgery and function preservation therapy" by making full use of state-of-the-art medical care. The goal is to cultivate more excellent neurosurgeons by performing high level brain surgical interventions in collaboration with all affiliated hospitals.
For each neurosurgical disease, we are conducting research on the following themes:

  • ・ Minimally invasive surgical approach: Development of surgical methods and safer surgical approach for the skull base lesion
  • ・ Surgical instrument: Development of surgical instruments to make surgery safer and more reliable
  • ・ Surgical simulation: Development of surgical simulation with three dimensional neuro-images
  • ・ Microneurosurgical anatomical study: Understanding and study of focal brain anatomy for more precise neurosurgical operation
  • ・ Intraoperative neural function monitoring and mapping: Research on evaluation of neural functions using electrophysiological techniques during surgery for function preservation
  • ・ Development of surgical robotics: Development of robot-assisted surgery system for minimally invasive neurosurgery
  • ・ Genetic analysis of malignant brain tumor: Genetic analysis, optimal chemotherapy of the malignant brain tumor
  • ・ Epilepsy surgery: Development of optimal treatment for drug-resistant epilepsy


1. Cerebrovascular neurosurgery
2. Brain tumor (intra- and extraaxial)
3. Functional neurosurgery
4. Neuroendoscopic surgery
5. Endovascular treatment

Major Publications

1. Ogiwara T, Goto T, Fujii Y, Nakamura T, Suzuki Y, Hanaoka Y, Ito K, Horiuchi T, Hongo K: Endoscopic endonasal approach in the Smart Cyber Operating Theater (SCOT): Preliminary clinical application. World Neurosurg. 147:e533-e537, 2021

2. Ogiwara T, Hori T, Fujii Y, Nakamura T, Suzuki Y, Watanabe G, Hanaoka Y, Goto T, Hongo K, Horiuchi T: Effectiveness of the intraoperative magnetic resonance imaging during endoscopic endonasal approach for acromegaly. Pituitary 24: 690-697, 2021

3. Hanaoka Y, Koyama JI, Yamazaki D, Fujii Y, Ogiwara T, Horiuchi T. Transradial quadraxial system for coil embolization of distal anterior cerebral artery aneurysms: A radial-first center case series and literature review. J Neuroradiol. 2021 (in press)

4. Hanaoka Y, Koyama JI, Fujii Y, Ogiwara T, Ito K, Horiuchi T. Bilateral Transradial Approach for Coil Embolization of Basilar Artery Aneurysms Associated with an Unfavorable Vertebral Artery Anatomy : Initial Experience with Role-sharing Technique. Clin Neuroradiol 31:699-707, 2021

5. Kanaya K, Goto T, Horiuchi T, Hongo K: Threshold variation of transcranial motor evoked potential with threshold criterion in frontotemporal craniotomy. Clin Neurophysiol Pract. 4:184-189, 2019

6. Kanaya K, Mitsuhashi T, Kiuchi T, Kobayashi S. The Efficacy of Intraoperative Passive Language Mapping for Glioma Surgery: A Case Report. Front Neurol 12:652401, 2021

7. Fujii Y, Muragaki Y, Maruyama T, Nitta M, Saito T, Ikuta S, Iseki H, Hongo K, Kawamata T: Threshold of the extent of resection for WHO grade III gliomas: retrospective volumetric analysis of 122 cases using intraoperative MR imaging. J Neurosurg. 129(1):1-9, 2018

8. Fujii Y, Ogiwara T, Goto T, Kanaya K, Hara Y, Hanaoka Y, Hardian RF, Hongo K, Horiuchi T.: Microscopic navigation-guided fence post technique for maximal tumor resection during glioma surgery. World Neurosurg. 151:e355-e362, 2021

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