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Hospital / health system · Sapporo · Japan

Keiyukai Sapporo Hospital

In research, Keiyukai Sapporo Hospital stands highest in Medicine (#9,382 of 17,978 worldwide) and Health Sciences (#12,339 of 20,462 worldwide), over all time.

keiyukaisapporo.or.jpROR OpenAlex
World rank, all time
#32,725
of 42,892
Rank in Japan
#1,362
of 2,112
Research works
333
▲ 60% vs 2013–17
Citations
3.8k
11.5 per fractional work
Top-10% rate
8.0%
record average 16.5%
Open access
54%
world 28%

What is Keiyukai Sapporo 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 #9,382 of 17,978 6.2%283
Health SciencesDomain #12,339 of 20,462 6.1%293

Each strip is that field’s whole ranked pool, with the notch where Keiyukai Sapporo 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.

Biochemistry, Genetics and Molecular Biology: 0.65× its world share, 2 worksBiochemistry, Geneti…Immunology and Microbiology: 0.16× its world share, 0 worksImmunology and Micro…Neuroscience: 2.43× its world share, 2 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.28× its world share, 0 worksPharmacology, Toxico…Chemical Engineering: 5.09× its world share, 1 worksChemical EngineeringComputer Science: 0.06× its world share, 0 worksComputer ScienceEngineering: 0.11× its world share, 1 worksEngineeringMathematics: 0.03× its world share, 0 worksMathematicsPhysics and Astronomy: 0.55× its world share, 1 worksPhysics and AstronomyDentistry: 0.18× its world share, 0 worksDentistryHealth Professions: 0.47× its world share, 1 worksHealth ProfessionsMedicine: 4.38× its world share, 47 worksMedicineBusiness, Management and Accounting: 0.05× its world share, 0 worksBusiness, Management…Economics, Econometrics and Finance: 0.17× its world share, 0 worksEconomics, Econometr…Psychology: 0.39× its world share, 1 worksPsychologySocial Sciences: 0.01× its world share, 0 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Chemical Engineering, 5.1×. Every wedge is a field page.

Who are the top researchers at Keiyukai Sapporo Hospital?

Ranked on the composite score, Masao Hosokawa, Tetsuro YAMASHITA and Takaya Kusumi lead among researchers whose main affiliation is Keiyukai Sapporo Hospital.

  1. 1 Masao Hosokawa Japan · #322,265 worldwide 61 citations · 37 works
  2. 2 Tetsuro YAMASHITA Japan · #478,596 worldwide 15 citations · 23 works
  3. 3 Takaya Kusumi Japan · #645,519 worldwide 39 citations · 18 works
  4. 4 Hiroyuki Okuda Japan · #805,564 worldwide 77 citations · 62 works
  5. 5 Masanobu Kusano Japan · #1,240,500 worldwide 19 citations · 15 works
  6. 6 Akihito Watanabe Japan · #1,345,538 worldwide 16 citations · 42 works
  7. 7 Nakao Ota Japan · #1,617,249 worldwide 3 citations · 15 works
All ranked researchers at Keiyukai Sapporo Hospital

Which keywords describe research at Keiyukai Sapporo Hospital?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Epidemiology, Chemotherapy, Endovascular Treatment, Endoscopic Resection, Aneurysmal Subarachnoid Hemorrhage, Intracranial Aneurysms, Radiotherapy and Prognosis.

▲ 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. Epidemiology8▲ 3.7×31 topics
  2. Chemotherapy6▲ 15×12 topics
  3. Endovascular Treatment5▲ 155×2 topics
  4. Endoscopic Resection4▲ 67×2 topics
  5. Aneurysmal Subarachnoid Hemorrhage4▲ 188×1 topic
  6. Intracranial Aneurysms4▲ 188×1 topic
  7. Radiotherapy3▲ 16×7 topics
  8. Quality of Life3▲ 3.7×15 topics
  9. Neoadjuvant Therapy3▲ 20×4 topics
  10. Prognosis3▲ 15×3 topics
  11. Chemoradiation3▲ 71×2 topics
  12. Surgery3▲ 13×4 topics
  13. Meta-Analysis2▲ 7.4×3 topics
  14. Preoperative Chemoradiotherapy2▲ 54×2 topics
  15. Adjuvant Therapy2▲ 32×2 topics
  16. Cetuximab2▲ 48×2 topics
  17. Clinical Practice Guidelines2▲ 7.6×7 topics
  18. Diagnosis2▲ 4.3×13 topics
  19. Management2▲ 5.2×11 topics
  20. Barrett's Esophagus2▲ 99×1 topic
  21. Esophageal Carcinoma2▲ 99×1 topic
  22. Prognostic Factors2▲ 9.0×10 topics
  23. Molecular Characterization2▲ 20×4 topics
  24. Survival2▲ 26×3 topics
  25. Gastric Cancer2▲ 31×3 topics
  26. Radiosurgery2▲ 37×3 topics
  27. Human Papillomavirus2▲ 26×1 topic
  28. Oropharyngeal Cancer2▲ 64×1 topic
  29. Rehabilitation2▲ 8.1×6 topics
  30. Squamous Cell Carcinoma2▲ 37×2 topics
  31. Clinical Management2▲ 17×3 topics
  32. Genetic Mutations2▲ 6.4×6 topics
  33. Magnetic Resonance Imaging2▲ 11×2 topics
  34. Neurological Disorders2▲ 5.2×5 topics
  35. Survival Analysis2▲ 11×4 topics
  36. Carotid Artery Stenosis2▲ 55×1 topic
  37. Endarterectomy2▲ 55×1 topic
  38. Lymph Node Dissection2▲ 46×1 topic
  39. Neoadjuvant Chemotherapy2▲ 33×1 topic
  40. Biomechanics1▲ 8.0×5 topics

Which research topics does Keiyukai Sapporo Hospital publish most on?

By volume in 2022–2025: Intracranial Aneurysms: Treatment and Complications, Esophageal Cancer Research and Treatment, Head and Neck Cancer Studies and Gastric Cancer Management and Outcomes.

Intracranial Aneurysms: …4Intracranial Aneurysms: Treatment and Complications: 4 fractional worksEsophageal Cancer Research and Treatment: 2 fractional worksHead and Neck Cancer Studies: 2 fractional worksGastric Cancer Management and Outcomes: 2 fractional worksCerebrovascular and Carotid Artery Diseases: 2 fractional worksEsophageal and GI Pathology: 1 fractional worksVascular Malformations D…1Vascular Malformations Diagnosis and Treatment: 1 fractional worksAnalytical Chemistry and Sensors: 1 fractional worksHead and Neck Surgical Oncology: 1 fractional worksMoyamoya disease diagnosis and treatment: 1 fractional works
NeurologySurgeryOtorhinolaryngologyPulmonary and Respiratory Medicine2 others

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

  1. 1 Intracranial Aneurysms: Treatment and Complications Neurology 4 works
  2. 2 Esophageal Cancer Research and Treatment Surgery 2 works
  3. 3 Head and Neck Cancer Studies Otorhinolaryngology 2 works
  4. 4 Gastric Cancer Management and Outcomes Pulmonary and Respiratory Medicine 2 works
  5. 5 Cerebrovascular and Carotid Artery Diseases Pulmonary and Respiratory Medicine 2 works
  6. 6 Esophageal and GI Pathology Surgery 1 works
  7. 7 Vascular Malformations Diagnosis and Treatment Neurology 1 works
  8. 8 Analytical Chemistry and Sensors Bioengineering 1 works
  9. 9 Head and Neck Surgical Oncology Surgery 1 works
  10. 10 Moyamoya disease diagnosis and treatment Rheumatology 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 available54.2%not open45.8%

World: 28% of research is openly available.

with international co-authors9.6%domestic only90.4%

World: 19% is written across borders.

How has Keiyukai Sapporo Hospital's research output changed?

Output in 2018–2022 was 60% 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 Sapporo

All research institutions in Sapporo

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.