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Hospital / health system · Muroran · Japan

Ohkawara Neurosurgical Hospital

In research, Ohkawara Neurosurgical Hospital stands highest in Medicine (#16,104 of 17,978 worldwide) and Health Sciences (#18,863 of 20,462 worldwide), over all time.

isyuukai.jp/ohkawaraROR OpenAlex
World rank, all time
#38,503
of 42,892
Rank in Japan
#1,759
of 2,112
Research works
386
▲ 13% vs 2013–17
Citations
4.2k
10.9 per fractional work
Top-10% rate
5.5%
record average 16.5%
Open access
46%
world 28%

What is Ohkawara Neurosurgical Hospital known for in research?

The fields where it stands highest, over all time, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorks
MedicineField #16,104 of 17,978 5.0%311
Health SciencesDomain #18,863 of 20,462 5.3%319

Each strip is that field’s whole ranked pool, with the notch where Ohkawara Neurosurgical Hospital sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 0.03× its world share, 0 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.28× its world share, 1 worksBiochemistry, Geneti…Neuroscience: 4.91× its world share, 4 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.24× its world share, 0 worksPharmacology, Toxico…Chemistry: 0.08× its world share, 0 worksChemistryComputer Science: 0.03× its world share, 0 worksComputer ScienceEngineering: 0.11× its world share, 1 worksEngineeringMaterials Science: 0.22× its world share, 0 worksMaterials SciencePhysics and Astronomy: 0.15× its world share, 0 worksPhysics and AstronomyHealth Professions: 0.88× its world share, 1 worksHealth ProfessionsMedicine: 4.20× its world share, 45 worksMedicineNursing: 5.25× its world share, 1 worksNursingPsychology: 0.48× its world share, 1 worksPsychology1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Nursing, 5.2×. Every wedge is a field page.

Who are the top researchers at Ohkawara Neurosurgical Hospital?

Ranked on the composite score, Masafumi Morimoto, Masaaki Hashimoto and Naoto Izumi lead among researchers whose main affiliation is Ohkawara Neurosurgical Hospital.

  1. 1 Masafumi Morimoto Japan · #349,808 worldwide 99 citations · 19 works
  2. 2 Masaaki Hashimoto Japan · #1,178,735 worldwide 35 citations · 49 works
  3. 3 Naoto Izumi Japan · #1,337,269 worldwide 16 citations · 21 works
All ranked researchers at Ohkawara Neurosurgical Hospital

Which keywords describe research at Ohkawara Neurosurgical Hospital?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Endovascular Treatment, Aneurysmal Subarachnoid Hemorrhage, Intracranial Aneurysms, Neuroprotection, Risk Factors, Revascularization, Neurological Disorders and Clinical Outcomes.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Endovascular Treatment8▲ 239×2 topics
  2. Aneurysmal Subarachnoid Hemorrhage6▲ 278×1 topic
  3. Intracranial Aneurysms6▲ 278×1 topic
  4. Neuroprotection5▲ 25×5 topics
  5. Risk Factors4▲ 7.3×7 topics
  6. Epidemiology4▲ 1.83×14 topics
  7. Revascularization4▲ 47×3 topics
  8. Clinical Outcomes4▲ 33×2 topics
  9. Neurological Disorders4▲ 13×12 topics
  10. Magnetic Resonance Imaging4▲ 27×4 topics
  11. Stroke Prevention4▲ 57×2 topics
  12. Oxidative Stress4▲ 4.2×13 topics
  13. Global Burden4▲ 12×3 topics
  14. Carotid Artery Stenosis4▲ 129×1 topic
  15. Cerebrovascular Events4▲ 118×2 topics
  16. Endarterectomy4▲ 129×1 topic
  17. Ischemic Stroke4▲ 42×4 topics
  18. Radiosurgery3▲ 65×3 topics
  19. Endovascular Therapy3▲ 89×1 topic
  20. Thrombolysis3▲ 89×1 topic
  21. Anticoagulant Therapy3▲ 37×3 topics
  22. Neuroinflammation3▲ 16×5 topics
  23. Genetic Mutations2▲ 10×3 topics
  24. Surgical Management2▲ 10.0×6 topics
  25. Arteriovenous Malformations2▲ 175×1 topic
  26. Cerebral Cavernous Malformations2▲ 175×1 topic
  27. Neural Plasticity2▲ 22×2 topics
  28. Functional Recovery2▲ 24×3 topics
  29. Parkinson's Disease2▲ 14×4 topics
  30. Constraint-Induced Therapy2▲ 38×1 topic
  31. Motor Recovery2▲ 38×1 topic
  32. Nutrition2▲ 6.6×3 topics
  33. Pathophysiology2▲ 10×3 topics
  34. Radiotherapy2▲ 7.0×3 topics
  35. Intracranial Pressure1▲ 37×2 topics
  36. Neuroimaging1▲ 9.1×7 topics
  37. Cerebrospinal Fluid Leaks1▲ 46×2 topics
  38. Epilepsy1▲ 22×3 topics
  39. Mitochondrial Dysfunction1▲ 8.1×5 topics
  40. Prognosis1▲ 7.3×4 topics

Which research topics does Ohkawara Neurosurgical Hospital publish most on?

By volume in 2022–2025: Intracranial Aneurysms: Treatment and Complications, Cerebrovascular and Carotid Artery Diseases, Acute Ischemic Stroke Management and Vascular Malformations Diagnosis and Treatment.

Intracranial Aneurysms: …6Intracranial Aneurysms: Treatment and Complications: 6 fractional worksCerebrovascular and Carotid Artery Diseases: 4 fractional worksAcute Ischemic Stroke Management: 3 fractional worksVascular Malformations D…2Vascular Malformations Diagnosis and Treatment: 2 fractional worksStroke Rehabilitation an…2Stroke Rehabilitation and Recovery: 2 fractional worksIntracerebral and Subara…1Intracerebral and Subarachnoid Hemorrhage Research: 1 fractional worksTraumatic Brain Injury and Neurovascular Disturbances: 1 fractional worksMoyamoya disease diagnosis and treatment: 1 fractional worksTrace Elements in Health: 1 fractional worksCerebrospinal fluid and hydrocephalus: 1 fractional works
NeurologyPulmonary and Respiratory MedicineEpidemiologyRehabilitation3 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Intracranial Aneurysms: Treatment and Complications Neurology 6 works
  2. 2 Cerebrovascular and Carotid Artery Diseases Pulmonary and Respiratory Medicine 4 works
  3. 3 Acute Ischemic Stroke Management Epidemiology 3 works
  4. 4 Vascular Malformations Diagnosis and Treatment Neurology 2 works
  5. 5 Stroke Rehabilitation and Recovery Rehabilitation 2 works
  6. 6 Intracerebral and Subarachnoid Hemorrhage Research Neurology 1 works
  7. 7 Traumatic Brain Injury and Neurovascular Disturbances Neurology 1 works
  8. 8 Moyamoya disease diagnosis and treatment Rheumatology 1 works
  9. 9 Trace Elements in Health Nutrition and Dietetics 1 works
  10. 10 Cerebrospinal fluid and hydrocephalus Cellular and Molecular Neuroscience 1 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available45.6%not open54.4%

World: 28% of research is openly available.

with international co-authors14.6%domestic only85.4%

World: 19% is written across borders.

How has Ohkawara Neurosurgical Hospital's research output changed?

Output in 2018–2022 was 13% higher than in 2013–2017.

1990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Other research institutions in Muroran

All research institutions in Muroran

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.