Science Explorer Back to mapMap
Discussion
Hospital / health system · Matsuyama · Japan

Ehime Prefectural Central Hospital

In research, Ehime Prefectural Central Hospital stands highest in Medicine (#6,778 of 8,541 worldwide) and Health Sciences (#8,096 of 9,902 worldwide), 2022-now. Relative to its size it is most specialised in Surgery (Surgery is 7.2× its share of world research).

eph.pref.ehime.jp/epchROR OpenAlex
World rank, 2022-now
#21,509
of 22,385 · #31,617 all time
Rank in Japan
#801
of 924
Research works
798
▼ 21% vs 2018-21
Citations
6.7k
8.4 per fractional work
Top-10% rate
4.5%
all institutions 10.0%
vs its own fields
0.88×
1.00× is exactly expected
Open access
53%
world 40%
International
4%
world 18%
Ehime Prefectural Central Hospital

What is Ehime Prefectural Central Hospital known for in research?

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

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
MedicineField #6,778 of 8,541 3.7%90 #11775
Health SciencesDomain #8,096 of 9,902 3.6%93 #14206

Each strip is that field's whole ranked pool, with the notch where Ehime Prefectural Central 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 average mark, because the average differs by field (from about 6% in Dentistry to 21% in Economics).

Which fields of science does Ehime Prefectural Central Hospital work in?

In 2022-now, 84% of research at Ehime Prefectural Central Hospital is in Health Sciences, 12% in Life Sciences. Its largest fields are Medicine (81%), Biochemistry, Genetics and Molecular Biology (7%), Immunology and Microbiology (2%). It does 3.4× the world's share of Health Sciences.

Health Sciences: 108 fractional works · 83.9% of its workMedicine: 105 fractional works · 81.4% of its workSurgery: 22 fractional works · 16.9% of its workPulmonary and Respiratory Medicine: 12 fractional works · 9.6% of its workOncology: 12 fractional works · 9.4% of its workEpidemiology: 8 fractional works · 5.9% of its workHepatology: 6 fractional works · 4.8% of its workCardiology and Cardiovascular Medicine: 5 fractional works · 3.8% of its workRadiology, Nuclear Medicine and Imaging: 5 fractional works · 3.6% of its workNeurology: 4 fractional works · 3.0% of its workPhysiology: 3 fractional works · 2.6% of its workDermatology: 3 fractional works · 2.3% of its workHematology: 3 fractional works · 2.2% of its workGastroenterology: 3 fractional works · 2.0% of its workGenetics: 2 fractional works · 1.9% of its workRheumatology: 2 fractional works · 1.7% of its workPublic Health, Environmental and Occupational Health: 2 fractional works · 1.6% of its workInfectious Diseases: 2 fractional works · 1.6% of its workEndocrinology, Diabetes and Metabolism: 2 fractional works · 1.2% of its workEmergency Medicine: 1 fractional works · 1.2% of its workPathology and Forensic Medicine: 1 fractional works · 1.0% of its workPsychiatry and Mental health: 1 fractional works · 0.5% of its workInternal Medicine: 1 fractional works · 0.5% of its workPediatrics, Perinatology and Child Health: 1 fractional works · 0.5% of its workAnesthesiology and Pain Medicine: 1 fractional works · 0.4% of its workComplementary and alternative medicine: 1 fractional works · 0.4% of its workObstetrics and Gynecology: 0 fractional works · 0.4% of its workOphthalmology: 0 fractional works · 0.4% of its workImmunology and Allergy: 0 fractional works · 0.4% of its workOtorhinolaryngology: 0 fractional works · 0.3% of its workCritical Care and Intensive Care Medicine: 0 fractional works · 0.2% of its workNephrology: 0 fractional works · 0.2% of its workUrology: 0 fractional works · 0.2% of its workGeriatrics and Gerontology: 0 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.5% of its workHealth Professions: 2 fractional works · 1.5% of its workSpeech and Hearing: 1 fractional works · 0.8% of its workGeneral Health Professions: 0 fractional works · 0.3% of its workPhysical Therapy, Sports Therapy and Rehabilitation: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.1% of its workNursing: 1 fractional works · 0.5% of its workNutrition and Dietetics: 1 fractional works · 0.5% of its workDentistry: 0 fractional works · 0.3% of its workOral Surgery: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workVeterinary: 0 fractional works · 0.3% of its workSmall Animals: 0 fractional works · 0.3% of its workLife Sciences: 15 fractional works · 11.7% of its workBiochemistry, Genetics and Molecular Biology: 9 fractional works · 7.1% of its workMolecular Biology: 4 fractional works · 3.1% of its workGenetics: 3 fractional works · 2.6% of its workCancer Research: 1 fractional works · 0.9% of its workCell Biology: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.2% of its workImmunology and Microbiology: 3 fractional works · 2.2% of its workImmunology: 2 fractional works · 1.7% of its workParasitology: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.1% of its workNeuroscience: 2 fractional works · 1.3% of its workNeurology: 1 fractional works · 0.4% of its workSensory Systems: 0 fractional works · 0.4% of its workCellular and Molecular Neuroscience: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.4% of its workPharmacology, Toxicology and Pharmaceutics: 1 fractional works · 0.6% of its workPharmacology: 1 fractional works · 0.6% of its workAgricultural and Biological Sciences: 1 fractional works · 0.5% of its workInsect Science: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.3% of its workPhysical Sciences: 3 fractional works · 2.7% of its workEngineering: 1 fractional works · 0.8% of its workBiomedical Engineering: 1 fractional works · 0.5% of its workMechanical Engineering: 0 fractional works · 0.3% of its workMathematics: 1 fractional works · 0.4% of its workModeling and Simulation: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.1% of its workComputer Science: 0 fractional works · 0.4% of its workComputer Vision and Pattern Recognition: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.0% of its workMaterials Science: 0 fractional works · 0.3% of its workBiomaterials: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.1% of its workEnvironmental Science: 0 fractional works · 0.3% of its workEcology: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.1% of its workChemistry: 0 fractional works · 0.3% of its workOrganic Chemistry: 0 fractional works · 0.3% of its workEarth and Planetary Sciences: 0 fractional works · 0.3% of its workGeophysics: 0 fractional works · 0.3% of its workPhysics and Astronomy: 0 fractional works · 0.0% of its workSocial Sciences: 2 fractional works · 1.7% of its workArts and Humanities: 1 fractional works · 0.8% of its workHistory: 1 fractional works · 0.7% of its workSmaller subfields together: 0 fractional works · 0.1% of its workPsychology: 1 fractional works · 0.5% of its workClinical Psychology: 1 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.1% of its workEconomics, Econometrics and Finance: 0 fractional works · 0.2% of its workEconomics and Econometrics: 0 fractional works · 0.2% of its workSocial Sciences: 0 fractional works · 0.1% of its workALL ITS WORKEhime PrefecturalCentral Hospital129fractional works, 2022-now
Life Sciences12%Physical Sciences3%Health Sciences84%Social Sciences2%

Each ring splits the one inside it: the four domains of science, their fields, their subfields. Size is fractional works in 2022-now. Every slice is a page; the interactive view zooms down to single topics and colours each by how much more of it this institution does than the world.

Its 4 domains and 22 fields, with their numbers
    1. Medicine10581.4%
    2. Health Professions21.5%
    3. Nursing10.5%
    4. Dentistry00.3%
    5. Veterinary00.3%
    1. Biochemistry, Genetics and Molecular Biology97.1%
    2. Immunology and Microbiology32.2%
    3. Neuroscience21.3%
    4. Pharmacology, Toxicology and Pharmaceutics10.6%
    5. Agricultural and Biological Sciences10.5%
    1. Engineering10.8%
    2. Mathematics10.4%
    3. Computer Science00.4%
    4. Materials Science00.3%
    5. Environmental Science00.3%
    6. Chemistry00.3%
    7. Earth and Planetary Sciences00.3%
    8. Physics and Astronomy00.0%
    1. Arts and Humanities10.8%
    2. Psychology10.5%
    3. Economics, Econometrics and Finance00.2%
    4. Social Sciences00.1%
All of science, and how each field's share has moved since 1950: the Science domain explorer

What does Ehime Prefectural Central Hospital specialise in?

Where its research is concentrated relative to its size: Surgery takes 7.2× the share of its output that it takes of world research.

  1. SurgerySubfield · 21.7 works7.2×
← 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: 0.11× its world share, 1 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.33× its world share, 9 worksBiochemistry, Geneti…Immunology and Microbiology: 2.18× its world share, 3 worksImmunology and Micro…Neuroscience: 0.82× its world share, 2 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 1.55× its world share, 1 worksPharmacology, Toxico…Chemistry: 0.16× its world share, 0 worksChemistryComputer Science: 0.05× its world share, 0 worksComputer ScienceEarth and Planetary Sciences: 0.16× its world share, 0 worksEarth and Planetary …Engineering: 0.05× its world share, 1 worksEngineeringEnvironmental Science: 0.06× its world share, 0 worksEnvironmental ScienceMaterials Science: 0.09× its world share, 0 worksMaterials ScienceMathematics: 0.35× its world share, 0 worksMathematicsPhysics and Astronomy: 0.01× its world share, 0 worksPhysics and AstronomyDentistry: 0.58× its world share, 0 worksDentistryHealth Professions: 0.59× its world share, 2 worksHealth ProfessionsMedicine: 4.23× its world share, 105 worksMedicineNursing: 1.02× its world share, 1 worksNursingVeterinary: 1.90× its world share, 0 worksVeterinaryArts and Humanities: 0.29× its world share, 1 worksArts and HumanitiesEconomics, Econometrics and Finance: 0.11× its world share, 0 worksEconomics, Econometr…Psychology: 0.17× 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: Medicine, 4.2×. Every wedge is a field page.

All 22 fields, with their numbers
  1. Medicine4.23×105 works
  2. Immunology and Microbiology2.18×3 works
  3. Veterinary1.90×0 works
  4. Pharmacology, Toxicology and Pharmaceutics1.55×1 works
  5. Biochemistry, Genetics and Molecular Biology1.33×9 works
  6. Nursing1.02×1 works
  7. Neuroscience0.82×2 works
  8. Health Professions0.59×2 works
  9. Dentistry0.58×0 works
  10. Mathematics0.35×0 works
  11. Arts and Humanities0.29×1 works
  12. Psychology0.17×1 works
  13. Chemistry0.16×0 works
  14. Earth and Planetary Sciences0.16×0 works
  15. Agricultural and Biological Sciences0.11×1 works
  16. Economics, Econometrics and Finance0.11×0 works
  17. Materials Science0.09×0 works
  18. Environmental Science0.06×0 works
  19. Computer Science0.05×0 works
  20. Engineering0.05×1 works
  21. Physics and Astronomy0.01×0 works
  22. Social Sciences0.01×0 works

Who are the top researchers at Ehime Prefectural Central Hospital?

Ranked on the quality score, Hideko Ohama, Fujimasa Tada and Akira Akamatsu lead among researchers whose main affiliation is Ehime Prefectural Central Hospital.

  1. 1 Hideko Ohama Japan · #1,637,054 worldwide 3.1k citations · 236 works
  2. 2 Fujimasa Tada Japan · #2,005,497 worldwide 1.7k citations · 151 works
  3. 3 Akira Akamatsu Japan · #2,496,578 worldwide 818 citations · 60 works
  4. 4 Atsushi Hiraoka Japan · #3,197,110 worldwide 11k citations · 548 works
  5. 5 Ikki Shimizu Japan · #3,206,561 worldwide 3.2k citations · 105 works
  6. 6 Yoshifumi Suga Japan · #3,482,921 worldwide 986 citations · 41 works
  7. 7 Hidetaro Ueki Japan · #3,509,392 worldwide 877 citations · 39 works
  8. 8 Yasuko Taketa Japan · #3,649,825 worldwide 406 citations · 19 works
  9. 9 Taro Fujitani Japan · #3,714,463 worldwide 529 citations · 24 works
  10. 10 Yoshito Homma Japan · #4,078,893 worldwide 358 citations · 16 works
All ranked researchers at Ehime Prefectural Central Hospital

What are the most cited papers from Ehime Prefectural Central Hospital?

The most cited paper from Ehime Prefectural Central Hospital is "Effect of 1-Month Dual Antiplatelet Therapy Followed by Clopidogrel vs 12-Month Dual Antiplatelet Therapy on Cardiovascular and Bleeding Events in Patients Receiving PCI" (Hirotoshi Watanabe et al., 2019), with 861 citations. Next come "Management of Hepatocellular Carcinoma in Japan: JSH Consensus Statements and Recommendations 2021 Update" (689) and "JSH Consensus-Based Clinical Practice Guidelines for the Management of Hepatocellular Carcinoma: 2014 Update by the Liver Cancer Study Group of Japan" (635).

Most cited papers
#PaperReleasedCitations
1 Effect of 1-Month Dual Antiplatelet Therapy Followed by Clopidogrel vs 12-Month Dual Antiplatelet Therapy on Cardiovascular and Bleeding Events in Patients Receiving PCI Hirotoshi Watanabe et al. · JAMA Open access 25 Jun 2019 861
2 Management of Hepatocellular Carcinoma in Japan: JSH Consensus Statements and Recommendations 2021 Update Masatoshi Kudo et al. · Liver Cancer Open access 2021 689
3 JSH Consensus-Based Clinical Practice Guidelines for the Management of Hepatocellular Carcinoma: 2014 Update by the Liver Cancer Study Group of Japan Masatoshi Kudo, Osamu Matsui, Namiki Izumi et al. · Liver Cancer Open access 2014 635
4 Validation and Potential of Albumin-Bilirubin Grade and Prognostication in a Nationwide Survey of 46,681 Hepatocellular Carcinoma Patients in Japan: The Need for a More Detailed Evaluation of Hepatic Function Atsushi Hiraoka, Kojiro Michitaka, Takashi Kumada et al. · Liver Cancer Open access 2017 343
5 Laparoscopic percutaneous extraperitoneal closure for inguinal hernia in children: clinical outcome of 972 repairs done in 3 pediatric surgical institutions Hiroo Takehara, Shigeru Yakabe, Kazuhiro Kameoka · Journal of Pediatric Surgery Dec 2006 320
All 60 most cited papers, with filters and sorting

Which keywords describe research at Ehime Prefectural Central Hospital?

By fractional works in 2022-now, weighted toward what it does more of than the world: Epidemiology, Diagnosis, Treatment, Management, Chemotherapy, Immunotherapy, Hepatocellular Carcinoma and Clinical Practice Guidelines.

▲ 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-now 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. Epidemiology19▲ 3.8×56 topics
  2. Treatment11▲ 6.9×21 topics
  3. Diagnosis10▲ 8.7×25 topics
  4. Chemotherapy8▲ 9.1×16 topics
  5. Management8▲ 8.1×18 topics
  6. Inflammation8▲ 3.0×34 topics
  7. Immunotherapy8▲ 8.6×12 topics
  8. Hepatocellular Carcinoma8▲ 29×3 topics
  9. Clinical Practice Guidelines8▲ 11×11 topics
  10. Prognostic Factors8▲ 14×13 topics
  11. Surgical Management5▲ 10×13 topics
  12. Tumor Microenvironment5▲ 8.6×7 topics
  13. Neoadjuvant Therapy5▲ 16×5 topics
  14. Survival5▲ 26×3 topics
  15. Liver Cancer4▲ 61×1 topic
  16. Radiofrequency Ablation4▲ 33×1 topic
  17. Cholangiocarcinoma4▲ 40×2 topics
  18. Complications4▲ 6.4×10 topics
  19. Genetic Mutations4▲ 7.3×11 topics
  20. Guidelines4▲ 6.5×8 topics
  21. Genetics4▲ 4.3×10 topics
  22. Surgery4▲ 8.6×9 topics
  23. Pathogenesis4▲ 5.6×12 topics
  24. Magnetic Resonance Imaging3▲ 10×4 topics
  25. Neurological Disorders3▲ 4.6×9 topics
  26. Myocardial Infarction3▲ 11×4 topics
  27. Cardiac Imaging3▲ 21×3 topics
  28. Molecular Characterization3▲ 14×4 topics
  29. Clinical Management3▲ 13×6 topics
  30. Metastasis3▲ 6.3×7 topics
  31. Molecular Pathology3▲ 20×2 topics
  32. Atherosclerosis2▲ 6.9×6 topics
  33. Biliary Tract Cancer2▲ 52×1 topic
  34. Immunohistochemistry2▲ 28×3 topics
  35. Intrahepatic Cholangiocarcinoma2▲ 52×1 topic
  36. NAFLD2▲ 17×1 topic
  37. NASH2▲ 17×1 topic
  38. Coronary Artery Disease2▲ 16×2 topics
  39. Pancreatic Cancer2▲ 18×2 topics
  40. Radiation Exposure2▲ 18×2 topics

Which research topics does Ehime Prefectural Central Hospital publish most on?

By volume in 2022-now: Hepatocellular Carcinoma Treatment and Prognosis, Cholangiocarcinoma and Gallbladder Cancer Studies, Liver Disease Diagnosis and Treatment and Pancreatic and Hepatic Oncology Research.

Hepatocellular Carcinoma…4Hepatocellular Carcinoma Treatment and Prognosis: 4 fractional worksCholangiocarcinoma and Gallbladder Cancer Studies: 2 fractional worksLiver Disease Diagnosis …2Liver Disease Diagnosis and Treatment: 2 fractional worksPancreatic and Hepatic O…2Pancreatic and Hepatic Oncology Research: 2 fractional worksCardiac Imaging and Diagnostics: 2 fractional worksGallbladder and Bile Duct Disorders: 2 fractional worksCoronary Interventions a…2Coronary Interventions and Diagnostics: 2 fractional worksLung Cancer Treatments and Mutations: 2 fractional worksCancer Immunotherapy and Biomarkers: 1 fractional worksBladder and Urothelial Cancer Treatments: 1 fractional works
HepatologySurgeryEpidemiologyOncology2 others

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

  1. 1 Hepatocellular Carcinoma Treatment and Prognosis Hepatology 4 works
  2. 2 Cholangiocarcinoma and Gallbladder Cancer Studies Surgery 2 works
  3. 3 Liver Disease Diagnosis and Treatment Epidemiology 2 works
  4. 4 Pancreatic and Hepatic Oncology Research Oncology 2 works
  5. 5 Cardiac Imaging and Diagnostics Radiology, Nuclear Medicine and Imaging 2 works
  6. 6 Gallbladder and Bile Duct Disorders Pulmonary and Respiratory Medicine 2 works
  7. 7 Coronary Interventions and Diagnostics Surgery 2 works
  8. 8 Lung Cancer Treatments and Mutations Pulmonary and Respiratory Medicine 2 works
  9. 9 Cancer Immunotherapy and Biomarkers Oncology 1 works
  10. 10 Bladder and Urothelial Cancer Treatments Surgery 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 available52.6%not open47.4%

World: 40% of research is openly available.

with international co-authors3.7%domestic only96.3%

World: 18% is written across borders.

How has Ehime Prefectural Central Hospital's research output changed?

Output in 2022-2025 was 21% lower than in 2018-2021.

still counting1990200020102020
grewheldshrank

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

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Ehime Prefectural Central Hospital as a percentage of every work published that year, 0.00048% in 2024.

still counting0.0010%0.0020%0.0030%Ehime Prefectural Central Hospital0.00048% in 202519801990200020102020

Fractional works of Ehime Prefectural Central Hospital over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Year by year, against all institutions in the same year.

still counting5%10%15%all institutions10.0% in 2025Ehime Prefectural Central Hospital2.9% in 202520102020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 8.9% in 2019.

Other research institutions in Matsuyama

All research institutions in Matsuyama

Share Ehime Prefectural Central Hospital's ranking

Ehime Prefectural Central Hospital on Science Explorer

A card with Ehime Prefectural Central Hospital's standing and the fields it leads in, for a post or a slide. A link to this page previews as the same card.

Download the card

1200 × 630 PNG, sized for social posts, drawn from the latest snapshot.

Badges for a website1Each links back here and updates with every snapshot

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners have tabs of their own, above.

Discussion

Ask a question or share a note about Ehime Prefectural Central Hospital. Keep it to the research: no personal attacks, advertising or links. Any reader can report a post, which collapses it for everyone until it is opened.