MASASHI KUWABARA

Last Updated :2026/07/03

Affiliations, Positions
Hiroshima University Hospital, Assistant Professor
E-mail
kuwa0722hiroshima-u.ac.jp

Basic Information

Academic Degrees

  • Hiroshima University

Educational Activity

Course in Charge

  1. 2026, Undergraduate Education, Year, Medical Neuroscience III
  2. 2026, Undergraduate Education, 2Term, Surgery II

Research Activities

Academic Papers

  1. Differences between middle cerebral artery bifurcations with normal anatomy and those with aneurysms., Neurosurgical review, 36(3), 2013
  2. A Japanese pedigree of familial cerebral cavernous malformations--a case report., Hiroshima journal of medical sciences, 63(4), 2014
  3. ★, The Effect of Irrigation Solutions on Recurrence of Chronic Subdural Hematoma: A Consecutive Cohort Study of 234 Patients., Neurologia medico-chirurgica, 57(5), 2017
  4. ★, Transient Cerebral Vasospasm After Carotid Artery Stenting: A Case Report and Literature Review., World neurosurgery, 135, 2020
  5. Safety of carotid artery stenting for elderly patients with cervical carotid artery stenosis., Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences, 26(4), 2020
  6. ★, Pediatric pial arteriovenous fistula located at the bottom of the callosal sulcus presenting with intraventricular hemorrhage: a case report and literature review., Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery, 36(12), 2020
  7. Prevalence and risk factors for brain white matter changes in young and middle-aged participants with Brain Dock (brain screening): a registry database study and literature review., Aging, 13(7), 2021
  8. Transplantation of rat cranial bone-derived mesenchymal stem cells promotes functional recovery in rats with spinal cord injury., Scientific reports, 11(1), 2021
  9. Hypertension and Advanced Age Increase the Risk of Cognitive Impairment after Mild Traumatic Brain Injury: A Registry-Based Study., World neurosurgery, 162, 2022
  10. Carotid Artery Stenting in Patients With Contralateral Carotid Occlusion Using a Combined Protection Method., Vascular and endovascular surgery, 56(5), 2022
  11. ★, Factors contributing to restenosis after carotid artery stenting and the usefulness of magnetic resonance plaque imaging: A study of 308 consecutive patients., European journal of radiology, 154, 2022
  12. Longitudinal electrophysiological changes after mesenchymal stem cell transplantation in a spinal cord injury rat model., PloS one, 17(8), 2022
  13. Abdominal Aortic Calcification Volume Is Associated with Wall Enhancement of Unruptured Intracranial Aneurysm., World neurosurgery, 167, 2022
  14. ★, Usefulness of stent placement for innominate artery stenosis via the right brachial artery under protection by balloon guide catheter: a technical case report., Acta neurochirurgica, 164(11), 2022
  15. ★, Natural history of acute unruptured vertebral basilar artery dissection: Temporal changes in imaging findings and contributory factors., Clinical neurology and neurosurgery, 222, 2022
  16. ★, The 5-Factor Modified Frailty Index as a More Useful Associated Factor Than Chronological Age After Unruptured Cerebral Aneurysm Surgery: A Nationwide Registry Study., Neurosurgery, 92(2), 2023
  17. Establishment of longitudinal transcranial stimulation motor evoked potentials monitoring of the forelimbs and hindlimbs in an ischemic stroke rat model., Scientific reports, 12(1), 2022
  18. Impact of intravenously administered cranial bone-derived mesenchymal stem cells on functional recovery in experimental spinal cord injury., Neuroscience letters, 799, 2023
  19. A novel rat model for longitudinal electrophysiological evaluation after cold-induced brain injury., Journal of neurosurgery, 139(3), 2023
  20. Access-route Visualization Using Ultrasonography and CT Angiography to Predict the Feasibility of Transvenous Embolization via the Facial Vein for Cavernous Sinus Dural Arteriovenous Fistulas., Journal of neuroendovascular therapy, 14(9), 2020
  21. Flow Redirection Endoluminal Device Flow Diverter Placement for Recurrent Dolichoectatic Vertebrobasilar Artery Aneurysm Treated with Multiple Low-Profile Visualized Intraluminal Support Stents: A Case Study., Journal of neuroendovascular therapy, 17(1), 2023
  22. Pulsatility index of superficial temporal artery was associated with cerebral infarction after direct bypass surgery for moyamoya disease., Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association, 32(11), 2023
  23. ★, Effectiveness of tuning an artificial intelligence algorithm for cerebral aneurysm diagnosis: a study of 10,000 consecutive cases., Scientific reports, 13(1), 2023
  24. Flow volume mismatch dramatically affects transient neurologic symptoms after direct bypass in Moyamoya disease., Neurosurgical review, 46(1), 2023
  25. Endovascular Treatment for Ruptured Intracranial Aneurysms with Intracerebral Hematoma-Clinical Propriety of Less Invasive Treatment., World neurosurgery, 182, 2024
  26. ★, Usefulness of combined bypass surgery for moyamoya disease in infants under 1 year of age: A technical case report., Surgical neurology international, 15, 2024
  27. Relevance of the Foramen of Vesalius for Preoperative Tumor Embolization in Skull Base Meningioma., World neurosurgery, 187, 2024
  28. ★, Artificial intelligence for volumetric measurement of cerebral white matter hyperintensities on thick-slice fluid-attenuated inversion recovery (FLAIR) magnetic resonance images from multiple centers., Scientific reports, 14(1), 2024
  29. Outcome of CAS under flow reversal and analysis for the intraprocedural flow of internal carotid artery., Clinical neurology and neurosurgery, 244, 2024
  30. Declining trend in the estimated annual rupture rate of unruptured cerebral aneurysms in Japan: a nationwide study., Neurosurgical review, 47(1), 2024
  31. ★, Human cranial bone-derived mesenchymal stem cells cultured under simulated microgravity can improve cerebral infarction in rats., Experimental neurology, 382, 2024
  32. Utility of the turn-back supporting technique using a steerable intermediate catheter: illustrative case., Journal of neurosurgery. Case lessons, 8(19), 2024
  33. Repeated human cranial bone-derived mesenchymal stem cell transplantation improved electrophysiological recovery in a spinal cord injury rat model., Neuroscience letters, 844, 2025
  34. Recanalization Does Not Always Equate to Reperfusion: No-Reflow Phenomenon After Successful Thrombectomy., Stroke, 56(1), 2025
  35. Questionnaire Survey on the Current Use of Brain Docks and Their Compliance with Guidelines in Japan., Neurologia medico-chirurgica, 65(4), 2025
  36. Multicenter Validation of a Unified Evidence-Based Treatment Protocol Focusing on Clazosentan for Managing Subarachnoid Hemorrhage., Journal of clinical medicine, 14(10), 2025
  37. Marked improvement in vessel wall enhancement after direct bypass surgery for moyamoya disease., Neuroradiology, 67(9), 2025
  38. Risk factors for angiographic vasospasm and delayed cerebral ischemia subsequent to aneurysmal subarachnoid hemorrhage: A multicenter, registry study., Clinical neurology and neurosurgery, 258, 2025
  39. Chronological and Biological Age in Predicting Outcomes of Older Patients in Neurosurgery., Neurologia medico-chirurgica, 65(12), 2025
  40. ★, Advantage of grading classification using volumetric artificial intelligence for periventricular hyperintensity and deep subcortical white matter hyperintensity., Scientific reports, 15(1), 2025
  41. ★, Impact of in-stent neointima and its association with in-stent restenosis after carotid artery stenting., European journal of radiology, 202, 2026