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Hospital / health system · Kurume · Japan

Koga Hospital

In research, Koga Hospital stands highest in Health Sciences (#6,804 of 11,982 worldwide) and Medicine (#9,192 of 10,443 worldwide), 2022–2025.

tenjinkai.or.jp/koga21ROR OpenAlex
World rank, 2022–2025
#17,295
of 28,054 · #26,129 all time
Rank in Japan
#466
of 1,070
Research works
648
▲ 3% vs 2013–17
Citations
6.1k
9.4 per fractional work
Top-10% rate
8.3%
record average 16.5%
Open access
49%
world 28%

What is Koga 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
Health SciencesDomain #6,804 of 11,982 5.8%98 #12551
MedicineField #9,192 of 10,443 4.8%94 #12065

Each strip is that field’s whole ranked pool, with the notch where Koga 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: 0.12× its world share, 1 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.92× its world share, 6 worksBiochemistry, Geneti…Immunology and Microbiology: 1.04× its world share, 1 worksImmunology and Micro…Neuroscience: 0.23× its world share, 0 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 1.55× its world share, 1 worksPharmacology, Toxico…Chemistry: 0.04× its world share, 0 worksChemistryComputer Science: 0.20× its world share, 2 worksComputer ScienceEarth and Planetary Sciences: 0.04× its world share, 0 worksEarth and Planetary …Energy: 0.10× its world share, 0 worksEnergyEngineering: 0.03× its world share, 1 worksEngineeringEnvironmental Science: 0.10× its world share, 1 worksEnvironmental ScienceMathematics: 0.18× its world share, 0 worksMathematicsPhysics and Astronomy: 0.09× its world share, 0 worksPhysics and AstronomyDentistry: 0.19× its world share, 0 worksDentistryHealth Professions: 0.95× its world share, 3 worksHealth ProfessionsMedicine: 4.07× its world share, 94 worksMedicineNursing: 0.14× its world share, 0 worksNursingVeterinary: 6.16× its world share, 1 worksVeterinaryArts and Humanities: 0.56× its world share, 2 worksArts and HumanitiesBusiness, Management and Accounting: 0.03× its world share, 0 worksBusiness, Management…Decision Sciences: 0.61× its world share, 1 worksDecision SciencesEconomics, Econometrics and Finance: 0.13× its world share, 0 worksEconomics, Econometr…Psychology: 0.44× its world share, 2 worksPsychologySocial Sciences: 0.28× its world share, 4 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Veterinary, 6.2×. Every wedge is a field page.

Who are the top researchers at Koga Hospital?

Ranked on the composite score, Takashi Goto, Kazumi Koga and Tomohiro Kawasaki lead among researchers whose main affiliation is Koga Hospital.

  1. 1 Takashi Goto Japan · #163,454 worldwide 108 citations · 26 works
  2. 2 Kazumi Koga Japan · #572,498 worldwide 46 citations · 15 works
  3. 3 Tomohiro Kawasaki Japan · #594,559 worldwide 75 citations · 35 works
  4. 4 Nobuhiko Koga Japan · #808,766 worldwide 30 citations · 21 works
  5. 5 S Taniguchi Japan · #915,100 worldwide 22 citations · 15 works
  6. 6 Hisashi Satô Japan · #955,469 worldwide 35 citations · 37 works
  7. 7 Masaru Yoshikai Japan · #1,483,047 worldwide 8 citations · 30 works
  8. 8 Satoshi Ohtsubo Japan · #1,490,134 worldwide 12 citations · 19 works
All ranked researchers at Koga Hospital

Which keywords describe research at Koga Hospital?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Epidemiology, Myocardial Infarction, Echocardiography, Diagnosis, Complications, Magnetic Resonance Imaging, Cardiac Imaging and Endovascular Repair.

▲ 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. Epidemiology14▲ 3.0×50 topics
  2. Diagnosis6▲ 5.3×20 topics
  3. Myocardial Infarction5▲ 19×6 topics
  4. Echocardiography5▲ 16×6 topics
  5. Treatment5▲ 3.5×22 topics
  6. Complications5▲ 8.0×11 topics
  7. Magnetic Resonance Imaging5▲ 15×4 topics
  8. Cardiac Imaging4▲ 30×3 topics
  9. Risk Factors4▲ 2.7×12 topics
  10. Endovascular Repair4▲ 35×3 topics
  11. Autoimmunity3▲ 20×4 topics
  12. Prognostic Factors3▲ 6.2×13 topics
  13. Type 1 Diabetes3▲ 32×2 topics
  14. Immunotherapy3▲ 3.6×9 topics
  15. Management3▲ 3.3×16 topics
  16. Precision Medicine3▲ 5.5×4 topics
  17. Chemotherapy3▲ 3.5×15 topics
  18. Radiation Exposure3▲ 23×2 topics
  19. Stroke Prevention3▲ 19×2 topics
  20. Atherosclerosis3▲ 7.9×6 topics
  21. Coronary Artery Disease3▲ 20×2 topics
  22. Cardiovascular Risk3▲ 7.0×5 topics
  23. Computed Tomography Angiography3▲ 33×1 topic
  24. Myocardial Perfusion3▲ 33×1 topic
  25. Surgical Aortic-Valve Replacement3▲ 30×1 topic
  26. Surgical Management3▲ 5.3×8 topics
  27. Transcatheter Aortic-Valve Replacement3▲ 30×1 topic
  28. SARS-CoV-22▲ 6.2×5 topics
  29. Clinical Decision Support2▲ 14×1 topic
  30. Ethical Challenges2▲ 10.0×1 topic
  31. Percutaneous Coronary Intervention2▲ 14×4 topics
  32. Cerebrovascular Events2▲ 34×2 topics
  33. Carotid Artery Stenosis2▲ 36×1 topic
  34. Coronary Stents2▲ 41×1 topic
  35. Diabetes Mellitus2▲ 8.9×3 topics
  36. Endarterectomy2▲ 36×1 topic
  37. HLA Genes2▲ 45×1 topic
  38. Insulin Production2▲ 45×1 topic
  39. Myocardial Revascularization2▲ 41×1 topic
  40. Pregnancy2▲ 8.4×3 topics

Which research topics does Koga Hospital publish most on?

By volume in 2022–2025: Cardiac Valve Diseases and Treatments, Cardiac Imaging and Diagnostics, Artificial Intelligence in Healthcare and Education and Coronary Interventions and Diagnostics.

Cardiac Valve Diseases a…3Cardiac Valve Diseases and Treatments: 3 fractional worksCardiac Imaging and Diag…3Cardiac Imaging and Diagnostics: 3 fractional worksArtificial Intelligence in Healthcare and Education: 2 fractional worksCoronary Interventions and Diagnostics: 2 fractional worksDiabetes and associated disorders: 2 fractional worksCerebrovascular and Carotid Artery Diseases: 2 fractional worksThyroid Disorders and Treatments: 2 fractional worksAortic Disease and Treat…2Aortic Disease and Treatment Approaches: 2 fractional worksPancreatic function and diabetes: 2 fractional worksCardiac Structural Anomalies and Repair: 2 fractional works
Cardiology and Cardiovascular MedicineRadiology, Nuclear Medicine and ImagingHealth InformaticsSurgery3 others

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

  1. 1 Cardiac Valve Diseases and Treatments Cardiology and Cardiovascular Medicine 3 works
  2. 2 Cardiac Imaging and Diagnostics Radiology, Nuclear Medicine and Imaging 3 works
  3. 3 Artificial Intelligence in Healthcare and Education Health Informatics 2 works
  4. 4 Coronary Interventions and Diagnostics Surgery 2 works
  5. 5 Diabetes and associated disorders Genetics 2 works
  6. 6 Cerebrovascular and Carotid Artery Diseases Pulmonary and Respiratory Medicine 2 works
  7. 7 Thyroid Disorders and Treatments Endocrinology, Diabetes and Metabolism 2 works
  8. 8 Aortic Disease and Treatment Approaches Pulmonary and Respiratory Medicine 2 works
  9. 9 Pancreatic function and diabetes Surgery 2 works
  10. 10 Cardiac Structural Anomalies and Repair Surgery 2 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 available49.2%not open50.8%

World: 28% of research is openly available.

with international co-authors7.6%domestic only92.4%

World: 19% is written across borders.

How has Koga Hospital's research output changed?

Output in 2018–2022 was 3% 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 Kurume

All research institutions in Kurume

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.