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Hospital / health system · Matsumoto · Japan

Aizawa Hospital

In research, Aizawa Hospital stands highest in Medicine (#9,851 of 10,443 worldwide) and Health Sciences (#11,493 of 11,982 worldwide), 2022–2025.

ai-hosp.or.jpROR OpenAlex
World rank, 2022–2025
#26,251
of 28,054 · #33,212 all time
Rank in Japan
#953
of 1,070
Research works
613
◆ 0% vs 2013–17
Citations
5.4k
8.9 per fractional work
Top-10% rate
6.5%
record average 16.5%
Open access
59%
world 28%

What is Aizawa Hospital known for in research?

The fields where it stands highest, 2022–2025, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
MedicineField #9,851 of 10,443 6.5%71 #13049
Health SciencesDomain #11,493 of 11,982 6.8%74 #16066

Each strip is that field’s whole ranked pool, with the notch where Aizawa 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: 0.08× its world share, 0 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.97× its world share, 5 worksBiochemistry, Geneti…Immunology and Microbiology: 1.00× its world share, 1 worksImmunology and Micro…Neuroscience: 1.67× its world share, 2 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 1.58× its world share, 0 worksPharmacology, Toxico…Computer Science: 0.05× its world share, 0 worksComputer ScienceEngineering: 0.29× its world share, 4 worksEngineeringEnvironmental Science: 0.04× its world share, 0 worksEnvironmental ScienceMaterials Science: 0.15× its world share, 0 worksMaterials SciencePhysics and Astronomy: 0.24× its world share, 0 worksPhysics and AstronomyDentistry: 0.39× its world share, 0 worksDentistryHealth Professions: 0.86× its world share, 2 worksHealth ProfessionsMedicine: 4.12× its world share, 71 worksMedicineNursing: 0.76× its world share, 0 worksNursingVeterinary: 0.91× its world share, 0 worksVeterinaryArts and Humanities: 0.13× its world share, 0 worksArts and HumanitiesBusiness, Management and Accounting: 0.11× its world share, 0 worksBusiness, Management…Economics, Econometrics and Finance: 0.17× its world share, 0 worksEconomics, Econometr…Psychology: 0.13× its world share, 0 worksPsychologySocial Sciences: 0.02× its world share, 0 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Medicine, 4.1×. Every wedge is a field page.

Who are the top researchers at Aizawa Hospital?

Ranked on the composite score, Hirofumi Kishimoto, Katsunori Tauchi and Seijiro Yoshifuku lead among researchers whose main affiliation is Aizawa Hospital.

  1. 1 Hirofumi Kishimoto Japan · #405,846 worldwide 54 citations · 19 works
  2. 2 Katsunori Tauchi Japan · #440,774 worldwide 33 citations · 33 works
  3. 3 Seijiro Yoshifuku Japan · #730,044 worldwide 5 citations · 15 works
  4. 4 Masato Nakamura Japan · #761,033 worldwide 175 citations · 125 works
  5. 5 Kotaro Sasahara Japan · #770,782 worldwide 10 citations · 15 works
  6. 6 Yasunori Nishida Japan · #840,177 worldwide 63 citations · 37 works
  7. 7 Hitoshi Nishizawa Japan · #1,088,827 worldwide 21 citations · 19 works
  8. 8 Yoshihiro Aoki Japan · #1,149,377 worldwide 10 citations · 20 works
  9. 9 Kazuhiro Oguchi Japan · #1,199,124 worldwide 35 citations · 21 works
  10. 10 Osamu Mishima Japan · #1,522,250 worldwide 6 citations · 16 works
All ranked researchers at Aizawa Hospital

Which keywords describe research at Aizawa Hospital?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Immunotherapy, Epidemiology, Complications, Treatment, Neurological Disorders, Rehabilitation, Diagnosis and Prognostic Factors.

▲ 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. Epidemiology10▲ 2.8×36 topics
  2. Immunotherapy6▲ 10×13 topics
  3. Treatment6▲ 5.4×17 topics
  4. Complications6▲ 13×10 topics
  5. Diagnosis5▲ 5.9×16 topics
  6. Quality of Life5▲ 3.8×18 topics
  7. Inflammation5▲ 2.5×19 topics
  8. Neurological Disorders4▲ 8.7×11 topics
  9. Rehabilitation4▲ 12×10 topics
  10. Chemotherapy4▲ 6.5×11 topics
  11. Management4▲ 5.7×13 topics
  12. Prognostic Factors4▲ 9.9×9 topics
  13. Surgery3▲ 11×8 topics
  14. Clinical Practice Guidelines3▲ 6.3×10 topics
  15. Radiotherapy3▲ 8.8×8 topics
  16. Risk Factors3▲ 2.9×11 topics
  17. Radiosurgery3▲ 33×4 topics
  18. Molecular Characterization3▲ 16×5 topics
  19. Mortality3▲ 5.0×7 topics
  20. Guidelines2▲ 5.9×9 topics
  21. Children2▲ 12×4 topics
  22. Clinical Guidelines2▲ 8.9×5 topics
  23. Survival Analysis2▲ 9.5×5 topics
  24. Genetic Mutations2▲ 5.6×7 topics
  25. Diagnostic Criteria2▲ 10×4 topics
  26. Pathogenesis2▲ 4.6×5 topics
  27. Surgical Management2▲ 5.6×9 topics
  28. Elderly Patients2▲ 13×3 topics
  29. Gastric Cancer2▲ 19×3 topics
  30. Pathophysiology2▲ 6.9×5 topics
  31. Prognosis2▲ 6.5×6 topics
  32. Cognitive Function2▲ 11×2 topics
  33. Molecular Classification2▲ 13×3 topics
  34. Parkinson's Disease2▲ 7.8×5 topics
  35. Adjuvant Therapy2▲ 14×2 topics
  36. Surgical Treatment2▲ 8.8×4 topics
  37. Blood-Brain Barrier2▲ 27×2 topics
  38. Glycemic Control2▲ 11×3 topics
  39. Insulin Therapy2▲ 14×3 topics
  40. Prognostic Markers2▲ 16×3 topics

Which research topics does Aizawa Hospital publish most on?

By volume in 2022–2025: Brain Metastases and Treatment, Gastric Cancer Management and Outcomes, Hip and Femur Fractures and Elbow and Forearm Trauma Treatment.

Brain Metastases and Tre…2Brain Metastases and Treatment: 2 fractional worksGastric Cancer Managemen…1Gastric Cancer Management and Outcomes: 1 fractional worksHip and Femur Fractures: 1 fractional worksElbow and Forearm Trauma Treatment: 1 fractional worksCancer Immunotherapy and Biomarkers: 1 fractional worksAutoimmune Neurological Disorders and Treatments: 1 fractional worksForeign Body Medical Cases: 1 fractional worksOrthopedic Surgery and R…1Orthopedic Surgery and Rehabilitation: 1 fractional worksGlioma Diagnosis and Treatment: 1 fractional worksVestibular and auditory disorders: 1 fractional works
Pulmonary and Respiratory MedicineSurgeryRehabilitationOncology3 others

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

  1. 1 Brain Metastases and Treatment Pulmonary and Respiratory Medicine 2 works
  2. 2 Gastric Cancer Management and Outcomes Pulmonary and Respiratory Medicine 1 works
  3. 3 Hip and Femur Fractures Surgery 1 works
  4. 4 Elbow and Forearm Trauma Treatment Rehabilitation 1 works
  5. 5 Cancer Immunotherapy and Biomarkers Oncology 1 works
  6. 6 Autoimmune Neurological Disorders and Treatments Neurology 1 works
  7. 7 Foreign Body Medical Cases Radiology, Nuclear Medicine and Imaging 1 works
  8. 8 Orthopedic Surgery and Rehabilitation Surgery 1 works
  9. 9 Glioma Diagnosis and Treatment Genetics 1 works
  10. 10 Vestibular and auditory disorders Neurology 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 available58.9%not open41.1%

World: 28% of research is openly available.

with international co-authors6.6%domestic only93.4%

World: 19% is written across borders.

How has Aizawa Hospital's research output changed?

Output in 2018–2022 was 0% lower 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 Matsumoto

All research institutions in Matsumoto

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.