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Hospital / health system · Kochi · Japan

Chikamori Hospital

In research, Chikamori Hospital stands highest in Health Sciences (#6,564 of 9,902 worldwide) and Medicine (#5,750 of 8,541 worldwide), 2022-now.

chikamori.comROR OpenAlex
World rank, 2022-now
#21,639
of 22,385 · #31,976 all time
Rank in Japan
#820
of 924
Research works
380
▲ 3% vs 2018-21
Citations
2.9k
7.6 per fractional work
Top-10% rate
6.6%
all institutions 10.0%
vs its own fields
0.94×
1.00× is exactly expected
Open access
61%
world 40%
International
5%
world 18%
Chikamori Hospital

What is Chikamori 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
Health SciencesDomain #6,564 of 9,902 4.7%74 #12416
MedicineField #5,750 of 8,541 4.7%71 #10804

Each strip is that field's whole ranked pool, with the notch where Chikamori 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 Chikamori Hospital work in?

In 2022-now, 89% of research at Chikamori Hospital is in Health Sciences, 8% in Life Sciences. Its largest fields are Medicine (85%), Biochemistry, Genetics and Molecular Biology (5%), Engineering (3%). It does 3.5× the world's share of Health Sciences.

Health Sciences: 84 fractional works · 88.6% of its workMedicine: 80 fractional works · 85.1% of its workCardiology and Cardiovascular Medicine: 18 fractional works · 19.4% of its workSurgery: 13 fractional works · 13.6% of its workNeurology: 8 fractional works · 8.5% of its workPulmonary and Respiratory Medicine: 8 fractional works · 8.3% of its workEpidemiology: 5 fractional works · 5.0% of its workPathology and Forensic Medicine: 3 fractional works · 3.1% of its workHematology: 3 fractional works · 2.8% of its workRadiology, Nuclear Medicine and Imaging: 2 fractional works · 2.5% of its workPhysiology: 2 fractional works · 2.3% of its workGenetics: 2 fractional works · 2.1% of its workRheumatology: 2 fractional works · 2.1% of its workOncology: 2 fractional works · 1.6% of its workEndocrinology, Diabetes and Metabolism: 1 fractional works · 1.4% of its workOphthalmology: 1 fractional works · 1.3% of its workInfectious Diseases: 1 fractional works · 1.3% of its workInternal Medicine: 1 fractional works · 1.2% of its workEmergency Medicine: 1 fractional works · 1.1% of its workGastroenterology: 1 fractional works · 1.1% of its workOrthopedics and Sports Medicine: 1 fractional works · 0.9% of its workObstetrics and Gynecology: 1 fractional works · 0.7% of its workCritical Care and Intensive Care Medicine: 1 fractional works · 0.6% of its workReproductive Medicine: 1 fractional works · 0.6% of its workPublic Health, Environmental and Occupational Health: 1 fractional works · 0.6% of its workNephrology: 1 fractional works · 0.6% of its workPsychiatry and Mental health: 0 fractional works · 0.4% of its workGeriatrics and Gerontology: 0 fractional works · 0.4% of its workPharmacology: 0 fractional works · 0.4% of its workHepatology: 0 fractional works · 0.3% of its workComplementary and alternative medicine: 0 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.6% of its workHealth Professions: 2 fractional works · 1.7% of its workSpeech and Hearing: 1 fractional works · 0.7% of its workEmergency Medical Services: 0 fractional works · 0.5% of its workPhysical Therapy, Sports Therapy and Rehabilitation: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.2% of its workNursing: 1 fractional works · 1.5% of its workNutrition and Dietetics: 1 fractional works · 1.5% of its workDentistry: 0 fractional works · 0.2% of its workLife Sciences: 7 fractional works · 7.7% of its workBiochemistry, Genetics and Molecular Biology: 4 fractional works · 4.7% of its workMolecular Biology: 2 fractional works · 2.2% of its workGenetics: 1 fractional works · 0.8% of its workBiochemistry: 0 fractional works · 0.5% of its workBiotechnology: 0 fractional works · 0.5% of its workEndocrinology: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.4% of its workImmunology and Microbiology: 1 fractional works · 1.4% of its workImmunology: 1 fractional works · 1.0% of its workMicrobiology: 0 fractional works · 0.4% of its workNeuroscience: 1 fractional works · 1.2% of its workCellular and Molecular Neuroscience: 1 fractional works · 0.5% of its workCognitive Neuroscience: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.3% of its workAgricultural and Biological Sciences: 0 fractional works · 0.3% of its workPlant Science: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workPharmacology, Toxicology and Pharmaceutics: 0 fractional works · 0.1% of its workPhysical Sciences: 3 fractional works · 3.2% of its workEngineering: 3 fractional works · 2.9% of its workBiomedical Engineering: 3 fractional works · 2.7% of its workSmaller subfields together: 0 fractional works · 0.1% of its workEnvironmental Science: 0 fractional works · 0.1% of its workMaterials Science: 0 fractional works · 0.1% of its workMathematics: 0 fractional works · 0.1% of its workSocial Sciences: 0 fractional works · 0.5% of its workPsychology: 0 fractional works · 0.2% of its workSocial Sciences: 0 fractional works · 0.2% of its workEconomics, Econometrics and Finance: 0 fractional works · 0.1% of its workArts and Humanities: 0 fractional works · 0.0% of its workALL ITS WORKChikamoriHospital94fractional works, 2022-now
Life Sciences8%Physical Sciences3%Health Sciences89%Social Sciences1%

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 19 fields, with their numbers
    1. Medicine8085.1%
    2. Health Professions21.7%
    3. Nursing11.5%
    4. Dentistry00.2%
    1. Biochemistry, Genetics and Molecular Biology44.7%
    2. Immunology and Microbiology11.4%
    3. Neuroscience11.2%
    4. Agricultural and Biological Sciences00.3%
    5. Pharmacology, Toxicology and Pharmaceutics00.1%
    1. Engineering32.9%
    2. Environmental Science00.1%
    3. Materials Science00.1%
    4. Mathematics00.1%
    5. Chemistry00.0%
    1. Psychology00.2%
    2. Social Sciences00.2%
    3. Economics, Econometrics and Finance00.1%
    4. Arts and Humanities00.0%
    5. Business, Management and Accounting00.0%
All of science, and how each field's share has moved since 1950: the Science domain explorer

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: 0.07× its world share, 0 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.88× its world share, 4 worksBiochemistry, Geneti…Immunology and Microbiology: 1.35× its world share, 1 worksImmunology and Micro…Neuroscience: 0.76× its world share, 1 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.27× its world share, 0 worksPharmacology, Toxico…Chemistry: 0.02× its world share, 0 worksChemistryEngineering: 0.19× its world share, 3 worksEngineeringEnvironmental Science: 0.02× its world share, 0 worksEnvironmental ScienceMaterials Science: 0.03× its world share, 0 worksMaterials ScienceMathematics: 0.09× its world share, 0 worksMathematicsDentistry: 0.39× its world share, 0 worksDentistryHealth Professions: 0.65× its world share, 2 worksHealth ProfessionsMedicine: 4.43× its world share, 80 worksMedicineNursing: 3.11× its world share, 1 worksNursingArts and Humanities: 0.01× its world share, 0 worksArts and HumanitiesBusiness, Management and Accounting: 0.01× its world share, 0 worksBusiness, Management…Economics, Econometrics and Finance: 0.02× its world share, 0 worksEconomics, Econometr…Psychology: 0.07× 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, 4.4×. Every wedge is a field page.

All 19 fields, with their numbers
  1. Medicine4.43×80 works
  2. Nursing3.11×1 works
  3. Immunology and Microbiology1.35×1 works
  4. Biochemistry, Genetics and Molecular Biology0.88×4 works
  5. Neuroscience0.76×1 works
  6. Health Professions0.65×2 works
  7. Dentistry0.39×0 works
  8. Pharmacology, Toxicology and Pharmaceutics0.27×0 works
  9. Engineering0.19×3 works
  10. Mathematics0.09×0 works
  11. Agricultural and Biological Sciences0.07×0 works
  12. Psychology0.07×0 works
  13. Materials Science0.03×0 works
  14. Chemistry0.02×0 works
  15. Environmental Science0.02×0 works
  16. Economics, Econometrics and Finance0.02×0 works
  17. Social Sciences0.02×0 works
  18. Arts and Humanities0.01×0 works
  19. Business, Management and Accounting0.01×0 works

Who are the top researchers at Chikamori Hospital?

Ranked on the quality score, Kazuya Kawai, Soichiro Yasuda and Daisuke Kuzume lead among researchers whose main affiliation is Chikamori Hospital.

  1. 1 Kazuya Kawai Japan · #945,380 worldwide 4.4k citations · 200 works
  2. 2 Soichiro Yasuda Japan · #1,619,625 worldwide 1.7k citations · 48 works
  3. 3 Daisuke Kuzume Japan · #2,751,284 worldwide 683 citations · 46 works
  4. 4 Isao Miyajima Japan · #3,095,398 worldwide 170 citations · 17 works
  5. 5 Hiroki Sugane Japan · #3,287,370 worldwide 223 citations · 48 works
  6. 6 Hayato Hosoda Japan · #3,669,604 worldwide 585 citations · 88 works
  7. 7 Shinji Mito Japan · #3,795,752 worldwide 420 citations · 43 works
  8. 8 Nobutoshi Kuniyoshi Japan · #3,928,673 worldwide 925 citations · 49 works
  9. 9 Ryuta Tai Japan · #4,172,715 worldwide 62 citations · 15 works
  10. 10 Masayuki Chikamori Japan · #4,727,274 worldwide 99 citations · 23 works
All ranked researchers at Chikamori Hospital

What are the most cited papers from Chikamori Hospital?

The most cited paper from Chikamori 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 "Auditory perception by normal Japanese adults of the sounds “L” and “R”" (614) and "Comparison of Clopidogrel Monotherapy After 1 to 2 Months of Dual Antiplatelet Therapy With 12 Months of Dual Antiplatelet Therapy in Patients With Acute Coronary Syndrome" (324).

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 Auditory perception by normal Japanese adults of the sounds “L” and “R” Hiromu Goto · Neuropsychologia 1971 614
3 Comparison of Clopidogrel Monotherapy After 1 to 2 Months of Dual Antiplatelet Therapy With 12 Months of Dual Antiplatelet Therapy in Patients With Acute Coronary Syndrome Hirotoshi Watanabe et al. · JAMA Cardiology Open access102 authors 2 Mar 2022 324
4 Very Late Stent Thrombosis and Late Target Lesion Revascularization After Sirolimus-Eluting Stent Implantation Takeshi Kimura, Takeshi Morimoto, Yoshihisa Nakagawa et al. · Circulation 28 Dec 2011 270
5 Open-Label Randomized Trial Comparing Oral Anticoagulation With and Without Single Antiplatelet Therapy in Patients With Atrial Fibrillation and Stable Coronary Artery Disease Beyond 1 Year After Coronary Stent Implantation Yukiko Matsumura‐Nakano et al. · Circulation Open access 17 Jan 2019 204
All 60 most cited papers, with filters and sorting

Which keywords describe research at Chikamori Hospital?

By fractional works in 2022-now, weighted toward what it does more of than the world: Diagnosis, Guidelines, Treatment, Cardiac Imaging, Echocardiography, Myocardial Infarction, Anticoagulant Therapy and Percutaneous Coronary Intervention.

▲ 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. Epidemiology8▲ 2.2×38 topics
  2. Diagnosis7▲ 7.8×19 topics
  3. Treatment6▲ 5.6×18 topics
  4. Guidelines6▲ 13×9 topics
  5. Inflammation6▲ 2.8×23 topics
  6. Cardiac Imaging5▲ 47×3 topics
  7. Echocardiography5▲ 20×7 topics
  8. Myocardial Infarction5▲ 23×5 topics
  9. Anticoagulant Therapy5▲ 40×4 topics
  10. Risk Factors5▲ 4.6×8 topics
  11. Percutaneous Coronary Intervention5▲ 36×4 topics
  12. Heart Failure4▲ 9.4×9 topics
  13. Management4▲ 5.2×16 topics
  14. Neuroimaging4▲ 14×5 topics
  15. Surgical Management4▲ 9.0×8 topics
  16. Catheter Ablation3▲ 29×2 topics
  17. Dilated Cardiomyopathy3▲ 52×2 topics
  18. Genetic Mutations3▲ 8.2×10 topics
  19. Stress-Induced Cardiomyopathy3▲ 304×1 topic
  20. Takotsubo Syndrome3▲ 304×1 topic
  21. Thrombosis3▲ 12×4 topics
  22. Magnetic Resonance Imaging3▲ 13×2 topics
  23. Rituximab3▲ 22×4 topics
  24. Atherosclerosis3▲ 10×6 topics
  25. Stroke Prevention3▲ 25×2 topics
  26. Angiogenesis2▲ 7.8×3 topics
  27. Neuropathology2▲ 21×3 topics
  28. Prognosis2▲ 7.9×5 topics
  29. Prognostic Factors2▲ 6.1×7 topics
  30. Coronary Artery Disease2▲ 21×2 topics
  31. Pathophysiology2▲ 8.4×7 topics
  32. Hemostasis2▲ 24×3 topics
  33. Atrial Fibrillation2▲ 22×2 topics
  34. Cerebrospinal Fluid Leaks2▲ 44×1 topic
  35. Computed Tomography Angiography2▲ 34×1 topic
  36. Intracranial Hypotension2▲ 146×1 topic
  37. Myocardial Perfusion2▲ 34×1 topic
  38. Revascularization2▲ 14×3 topics
  39. Thiamine Deficiency2▲ 141×1 topic
  40. Wernicke-Korsakoff Syndrome2▲ 141×1 topic

Which research topics does Chikamori Hospital publish most on?

By volume in 2022-now: Takotsubo Cardiomyopathy and Associated Phenomena, Neurosurgical Procedures and Complications, Cardiac Imaging and Diagnostics and Alcoholism and Thiamine Deficiency.

Takotsubo Cardiomyopathy…3Takotsubo Cardiomyopathy and Associated Phenomena: 3 fractional worksNeurosurgical Procedures…2Neurosurgical Procedures and Complications: 2 fractional worksCardiac Imaging and Diagnostics: 2 fractional worksAlcoholism and Thiamine Deficiency: 2 fractional worksCardiac Structural Anomalies and Repair: 2 fractional worksAtrial Fibrillation Management and Outcomes: 2 fractional worksCardiac tumors and thrombi: 2 fractional worksMechanical Circulatory S…2Mechanical Circulatory Support Devices: 2 fractional worksCardiac Arrhythmias and Treatments: 2 fractional worksCoronary Interventions and Diagnostics: 2 fractional works
Cardiology and Cardiovascular MedicineNeurologyRadiology, Nuclear Medicine and ImagingSurgery1 others

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

  1. 1 Takotsubo Cardiomyopathy and Associated Phenomena Cardiology and Cardiovascular Medicine 3 works
  2. 2 Neurosurgical Procedures and Complications Neurology 2 works
  3. 3 Cardiac Imaging and Diagnostics Radiology, Nuclear Medicine and Imaging 2 works
  4. 4 Alcoholism and Thiamine Deficiency Neurology 2 works
  5. 5 Cardiac Structural Anomalies and Repair Surgery 2 works
  6. 6 Atrial Fibrillation Management and Outcomes Cardiology and Cardiovascular Medicine 2 works
  7. 7 Cardiac tumors and thrombi Cardiology and Cardiovascular Medicine 2 works
  8. 8 Mechanical Circulatory Support Devices Biomedical Engineering 2 works
  9. 9 Cardiac Arrhythmias and Treatments Cardiology and Cardiovascular Medicine 2 works
  10. 10 Coronary Interventions and Diagnostics 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 available60.9%not open39.1%

World: 40% of research is openly available.

with international co-authors5.3%domestic only94.7%

World: 18% is written across borders.

How has Chikamori Hospital's research output changed?

Output in 2022-2025 was 3% higher 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 Chikamori Hospital as a percentage of every work published that year, 0.00039% in 2024.

still counting0.00050%0.0010%0.0015%Chikamori Hospital0.00031% in 202519801990200020102020

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

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Chikamori Hospital on Science Explorer

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