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Hospital / health system · Hiroshima · Japan

Hiroshima University Hospital

In research, Hiroshima University Hospital stands highest in Medicine (#1,895 of 10,443 worldwide), Health Sciences (#2,254 of 11,982 worldwide) and Life Sciences (#4,071 of 7,800 worldwide), 2022–2025. Relative to its size it is most specialised in Oncology, Pulmonary and Respiratory Medicine and Rheumatology — Oncology is 6.4× its share of world research.

hiroshima-u.ac.jp/en/hospROR OpenAlex
World rank, 2022–2025
#6,655
of 28,054 · #11,720 all time
Rank in Japan
#159
of 1,070
Research works
2.9k
▲ 65% vs 2013–17
Citations
43k
15.1 per fractional work
Top-10% rate
11.1%
record average 16.5%
Open access
54%
world 28%

What is Hiroshima University 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 #1,895 of 10,443 10.4%556 #3270
Health SciencesDomain #2,254 of 11,982 10.9%597 #3848
Life SciencesDomain #4,071 of 7,800 12.4%101 #6455
SurgerySubfield #967 of 1,816 11.8%104 #1595
Pulmonary and Respiratory MedicineSubfield #936 of 1,144 10.8%72 #1254

Each strip is that field’s whole ranked pool, with the notch where Hiroshima University 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).

Which of those standings moved

The same fields on both windows: where it stood over the whole record, and where it stands in 2022–2025. The distance is the story, and it is the one thing the two rank columns above cannot show.

  1. Medicine#3,270 #1,895
  2. Health Sciences#3,848 #2,254
  3. Life Sciences#6,455 #4,071
  4. Surgery#1,595 #967
  5. Pulmonary and Respiratory Medicine#1,254 #936
all time2022–2025, better2022–2025, worse

A dot further right is a better standing. Fields it was not ranked in over the whole record are left out.

What does Hiroshima University Hospital specialise in?

Where its research is concentrated relative to its size: Oncology takes 6.4× the share of its output that it takes of world research.

  1. OncologySubfield · 53.6 works6.4×
  2. Pulmonary and Respiratory MedicineSubfield · 71.7 works6.3×
  3. RheumatologySubfield · 20.9 works6.1×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

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: 0.10× its world share, 3 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.49× its world share, 59 worksBiochemistry, Geneti…Immunology and Microbiology: 2.70× its world share, 20 worksImmunology and Micro…Neuroscience: 1.14× its world share, 14 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 1.96× its world share, 5 worksPharmacology, Toxico…Chemistry: 0.06× its world share, 1 worksChemistryComputer Science: 0.07× its world share, 4 worksComputer ScienceEarth and Planetary Sciences: 0.01× its world share, 0 worksEarth and Planetary …Engineering: 0.15× its world share, 17 worksEngineeringEnvironmental Science: 0.09× its world share, 3 worksEnvironmental ScienceMaterials Science: 0.08× its world share, 2 worksMaterials ScienceMathematics: 0.08× its world share, 1 worksMathematicsPhysics and Astronomy: 0.27× its world share, 4 worksPhysics and AstronomyDentistry: 5.41× its world share, 20 worksDentistryHealth Professions: 0.83× its world share, 16 worksHealth ProfessionsMedicine: 3.90× its world share, 556 worksMedicineNursing: 1.19× its world share, 4 worksNursingVeterinary: 0.72× its world share, 1 worksVeterinaryArts and Humanities: 0.07× its world share, 2 worksArts and HumanitiesBusiness, Management and Accounting: 0.01× its world share, 0 worksBusiness, Management…Decision Sciences: 0.10× its world share, 1 worksDecision SciencesEconomics, Econometrics and Finance: 0.09× its world share, 1 worksEconomics, Econometr…Psychology: 0.23× its world share, 5 worksPsychologySocial Sciences: 0.03× its world share, 3 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Dentistry, 5.4×. Every wedge is a field page.

Who are the top researchers at Hiroshima University Hospital?

Ranked on the composite score, Shiro Oka, Shinji Tanaka and Takao Masaki lead among researchers whose main affiliation is Hiroshima University Hospital.

  1. 1 Shiro Oka Japan · #52,462 worldwide 276 citations · 34 works
  2. 2 Shinji Tanaka Japan · #102,226 worldwide 650 citations · 189 works
  3. 3 Takao Masaki Japan · #214,534 worldwide 166 citations · 39 works
  4. 4 Naomichi Uchida Japan · #293,913 worldwide 61 citations · 28 works
  5. 5 Shiro Oka Japan · #496,974 worldwide 111 citations · 74 works
  6. 6 Taiichi Takasaki Japan · #645,802 worldwide 23 citations · 20 works
  7. 7 Akiko Sugiyama Japan · #702,190 worldwide 47 citations · 21 works
  8. 8 Akiyoshi Tsuboi Japan · #766,576 worldwide 29 citations · 16 works
  9. 9 Eri Suzuki Japan · #775,952 worldwide 31 citations · 16 works
  10. 10 Keijiro Katayama Japan · #844,376 worldwide 23 citations · 16 works
All ranked researchers at Hiroshima University Hospital

Which keywords describe research at Hiroshima University Hospital?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Epidemiology, Inflammation, Chemotherapy, Clinical Practice Guidelines, Radiotherapy, Treatment, Prognostic Factors and Surgical Management.

▲ 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. Epidemiology87▲ 3.0×101 topics
  2. Inflammation68▲ 4.4×67 topics
  3. Chemotherapy51▲ 9.8×23 topics
  4. Treatment39▲ 4.3×38 topics
  5. Clinical Practice Guidelines37▲ 9.0×14 topics
  6. Quality of Life35▲ 3.2×37 topics
  7. Radiotherapy30▲ 10×13 topics
  8. Diagnosis29▲ 4.1×35 topics
  9. Cancer28▲ 2.8×41 topics
  10. Immunotherapy27▲ 5.2×18 topics
  11. Prognostic Factors27▲ 8.4×14 topics
  12. Risk Factors26▲ 3.2×26 topics
  13. Surgical Management23▲ 7.7×17 topics
  14. Management23▲ 3.9×25 topics
  15. Cardiovascular Disease21▲ 2.5×31 topics
  16. Clinical Trials21▲ 4.2×17 topics
  17. Endoscopic Resection21▲ 28×2 topics
  18. Surgery20▲ 7.9×10 topics
  19. Tumor Microenvironment19▲ 5.9×8 topics
  20. Complications19▲ 5.2×16 topics
  21. Adjuvant Therapy19▲ 20×2 topics
  22. Neoadjuvant Therapy19▲ 11×5 topics
  23. Prognosis18▲ 7.5×9 topics
  24. Prevention18▲ 5.9×13 topics
  25. Metastasis18▲ 7.1×11 topics
  26. Genetic Mutations17▲ 5.2×21 topics
  27. Gastric Cancer16▲ 19×3 topics
  28. Survival Analysis16▲ 7.9×6 topics
  29. Molecular Characterization16▲ 12×6 topics
  30. Rehabilitation15▲ 5.3×11 topics
  31. Guidelines15▲ 4.4×12 topics
  32. Hypertension14▲ 6.3×13 topics
  33. Targeted Therapy13▲ 8.1×5 topics
  34. Neoadjuvant Chemotherapy13▲ 21×2 topics
  35. Survival12▲ 12×4 topics
  36. Hepatocellular Carcinoma12▲ 7.7×4 topics
  37. Preoperative Chemoradiotherapy12▲ 21×2 topics
  38. Lymph Node Dissection12▲ 27×1 topic
  39. Metastatic Gastric Cancer12▲ 27×1 topic
  40. PET Imaging11▲ 8.6×4 topics

Which research topics does Hiroshima University Hospital publish most on?

By volume in 2022–2025: Gastric Cancer Management and Outcomes, Esophageal Cancer Research and Treatment, Cancer Immunotherapy and Biomarkers and Lung Cancer Diagnosis and Treatment.

Gastric Cancer Managemen…12Gastric Cancer Management and Outcomes: 12 fractional worksEsophageal Cancer Resear…9Esophageal Cancer Research and Treatment: 9 fractional worksCancer Immunotherapy and Biomarkers: 8 fractional worksLung Cancer Diagnosis and Treatment: 7 fractional worksHepatocellular Carcinoma Treatment and Prognosis: 7 fractional worksGastrointestinal Tumor Research and Treatment: 6 fractional worksLung Cancer Treatments and Mutations: 6 fractional worksRadiomics and Machine Le…6Radiomics and Machine Learning in Medical Imaging: 6 fractional worksOral microbiology and periodontitis research: 6 fractional worksHead and Neck Cancer Studies: 5 fractional works
Pulmonary and Respiratory MedicineSurgeryOncologyHepatology4 others

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

  1. 1 Gastric Cancer Management and Outcomes Pulmonary and Respiratory Medicine 12 works
  2. 2 Esophageal Cancer Research and Treatment Surgery 9 works
  3. 3 Cancer Immunotherapy and Biomarkers Oncology 8 works
  4. 4 Lung Cancer Diagnosis and Treatment Pulmonary and Respiratory Medicine 7 works
  5. 5 Hepatocellular Carcinoma Treatment and Prognosis Hepatology 7 works
  6. 6 Gastrointestinal Tumor Research and Treatment Gastroenterology 6 works
  7. 7 Lung Cancer Treatments and Mutations Pulmonary and Respiratory Medicine 6 works
  8. 8 Radiomics and Machine Learning in Medical Imaging Radiology, Nuclear Medicine and Imaging 6 works
  9. 9 Oral microbiology and periodontitis research Periodontics 6 works
  10. 10 Head and Neck Cancer Studies Otorhinolaryngology 5 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 available53.7%not open46.3%

World: 28% of research is openly available.

with international co-authors8.1%domestic only91.9%

World: 19% is written across borders.

How has Hiroshima University Hospital's research output changed?

Output in 2018–2022 was 65% 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 Hiroshima

All research institutions in Hiroshima

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.