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Hospital / health system · Sendai · Japan

Sendai Kousei Hospital

In research, Sendai Kousei Hospital stands highest in Health Sciences (#3,344 of 9,902 worldwide) and Medicine (#3,091 of 8,541 worldwide), 2022-now. Relative to its size it is most specialised in Pulmonary and Respiratory Medicine, Surgery and Medicine (Pulmonary and Respiratory Medicine is 13.5× its share of world research).

sendai-kousei-hospital.jpROR OpenAlex
World rank, 2022-now
#17,497
of 22,385 · #23,573 all time
Rank in Japan
#532
of 924
Research works
803
▼ 12% vs 2018-21
Citations
6.9k
8.6 per fractional work
Top-10% rate
8.6%
all institutions 10.0%
vs its own fields
1.02×
1.00× is exactly expected
Open access
51%
world 40%
International
5%
world 18%
Sendai Kousei Hospital

What is Sendai Kousei 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 #3,344 of 9,902 9.1%127 #8278
MedicineField #3,091 of 8,541 8.8%125 #7210

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

In 2022-now, 90% of research at Sendai Kousei Hospital is in Health Sciences, 6% in Life Sciences. Its largest fields are Medicine (89%), Biochemistry, Genetics and Molecular Biology (3%), Engineering (2%). It does 3.7× the world's share of Health Sciences.

Health Sciences: 148 fractional works · 89.8% of its workMedicine: 147 fractional works · 88.7% of its workSurgery: 40 fractional works · 24.2% of its workPulmonary and Respiratory Medicine: 34 fractional works · 20.8% of its workCardiology and Cardiovascular Medicine: 15 fractional works · 9.2% of its workOncology: 15 fractional works · 9.1% of its workRadiology, Nuclear Medicine and Imaging: 7 fractional works · 4.1% of its workEpidemiology: 7 fractional works · 4.0% of its workNeurology: 4 fractional works · 2.4% of its workGastroenterology: 4 fractional works · 2.3% of its workRheumatology: 3 fractional works · 1.8% of its workPathology and Forensic Medicine: 2 fractional works · 1.4% of its workHepatology: 2 fractional works · 1.2% of its workEndocrinology, Diabetes and Metabolism: 2 fractional works · 1.1% of its workPublic Health, Environmental and Occupational Health: 2 fractional works · 1.0% of its workPsychiatry and Mental health: 1 fractional works · 0.7% of its workReproductive Medicine: 1 fractional works · 0.6% of its workGenetics: 1 fractional works · 0.5% of its workPhysiology: 1 fractional works · 0.4% of its workHematology: 1 fractional works · 0.4% of its workOtorhinolaryngology: 1 fractional works · 0.4% of its workInternal Medicine: 1 fractional works · 0.3% of its workCritical Care and Intensive Care Medicine: 1 fractional works · 0.3% of its workAnesthesiology and Pain Medicine: 0 fractional works · 0.3% of its workOrthopedics and Sports Medicine: 0 fractional works · 0.3% of its workInfectious Diseases: 0 fractional works · 0.3% of its workEmergency Medicine: 0 fractional works · 0.3% of its workNephrology: 0 fractional works · 0.3% of its workObstetrics and Gynecology: 0 fractional works · 0.3% of its workRehabilitation: 0 fractional works · 0.2% of its workDermatology: 0 fractional works · 0.2% of its workOphthalmology: 0 fractional works · 0.2% of its workHealth Professions: 1 fractional works · 0.8% of its workGeneral Health Professions: 0 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.5% of its workDentistry: 0 fractional works · 0.3% of its workLife Sciences: 9 fractional works · 5.6% of its workBiochemistry, Genetics and Molecular Biology: 5 fractional works · 3.3% of its workGenetics: 2 fractional works · 1.4% of its workMolecular Biology: 2 fractional works · 1.3% of its workCancer Research: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.3% of its workNeuroscience: 2 fractional works · 1.1% of its workNeurology: 1 fractional works · 0.7% of its workSmaller subfields together: 1 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 workImmunology and Microbiology: 1 fractional works · 0.5% of its workImmunology: 1 fractional works · 0.5% of its workAgricultural and Biological Sciences: 0 fractional works · 0.2% of its workEcology, Evolution, Behavior and Systematics: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.0% of its workPhysical Sciences: 5 fractional works · 3.0% of its workEngineering: 3 fractional works · 1.7% of its workBiomedical Engineering: 2 fractional works · 1.3% of its workSmaller subfields together: 1 fractional works · 0.4% of its workEnvironmental Science: 1 fractional works · 0.4% of its workHealth, Toxicology and Mutagenesis: 1 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.1% of its workMathematics: 1 fractional works · 0.3% of its workMathematical Physics: 0 fractional works · 0.3% of its workComputer Science: 1 fractional works · 0.3% of its workPhysics and Astronomy: 0 fractional works · 0.1% of its workMaterials Science: 0 fractional works · 0.0% of its workChemistry: 0 fractional works · 0.0% of its workSocial Sciences: 3 fractional works · 1.6% of its workPsychology: 1 fractional works · 0.7% of its workClinical Psychology: 1 fractional works · 0.3% of its workExperimental and Cognitive Psychology: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.2% of its workEconomics, Econometrics and Finance: 1 fractional works · 0.5% of its workEconomics and Econometrics: 1 fractional works · 0.5% of its workSocial Sciences: 1 fractional works · 0.3% of its workBusiness, Management and Accounting: 0 fractional works · 0.0% of its workDecision Sciences: 0 fractional works · 0.0% of its workALL ITS WORKSendai KouseiHospital165fractional works, 2022-now
Life Sciences6%Physical Sciences3%Health Sciences90%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 21 fields, with their numbers
    1. Medicine14788.7%
    2. Health Professions10.8%
    3. Dentistry00.3%
    4. Nursing00.0%
    1. Biochemistry, Genetics and Molecular Biology53.3%
    2. Neuroscience21.1%
    3. Pharmacology, Toxicology and Pharmaceutics10.6%
    4. Immunology and Microbiology10.5%
    5. Agricultural and Biological Sciences00.2%
    1. Engineering31.7%
    2. Environmental Science10.4%
    3. Mathematics10.3%
    4. Computer Science10.3%
    5. Physics and Astronomy00.1%
    6. Materials Science00.0%
    7. Chemistry00.0%
    1. Psychology10.7%
    2. Economics, Econometrics and Finance10.5%
    3. Social Sciences10.3%
    4. Business, Management and Accounting00.0%
    5. Decision Sciences00.0%
All of science, and how each field's share has moved since 1950: the Science domain explorer

What does Sendai Kousei Hospital specialise in?

Where its research is concentrated relative to its size: Pulmonary and Respiratory Medicine takes 13.5× the share of its output that it takes of world research.

  1. Pulmonary and Respiratory MedicineSubfield · 34.4 works14×
  2. SurgerySubfield · 40.0 works10×
  3. MedicineField · 146.6 works4.6×
← 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: 0.05× its world share, 0 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.61× its world share, 5 worksBiochemistry, Geneti…Immunology and Microbiology: 0.52× its world share, 1 worksImmunology and Micro…Neuroscience: 0.66× its world share, 2 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 1.56× its world share, 1 worksPharmacology, Toxico…Chemistry: 0.03× its world share, 0 worksChemistryComputer Science: 0.04× its world share, 0 worksComputer ScienceEngineering: 0.11× its world share, 3 worksEngineeringEnvironmental Science: 0.09× its world share, 1 worksEnvironmental ScienceMaterials Science: 0.01× its world share, 0 worksMaterials ScienceMathematics: 0.27× its world share, 0 worksMathematicsPhysics and Astronomy: 0.05× its world share, 0 worksPhysics and AstronomyDentistry: 0.54× its world share, 0 worksDentistryHealth Professions: 0.31× its world share, 1 worksHealth ProfessionsMedicine: 4.61× its world share, 147 worksMedicineNursing: 0.03× its world share, 0 worksNursingBusiness, Management and Accounting: 0.01× its world share, 0 worksBusiness, Management…Decision Sciences: 0.03× its world share, 0 worksDecision SciencesEconomics, Econometrics and Finance: 0.23× its world share, 1 worksEconomics, Econometr…Psychology: 0.23× its world share, 1 worksPsychologySocial Sciences: 0.03× its world share, 1 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Medicine, 4.6×. Every wedge is a field page.

All 21 fields, with their numbers
  1. Medicine4.61×147 works
  2. Pharmacology, Toxicology and Pharmaceutics1.56×1 works
  3. Neuroscience0.66×2 works
  4. Biochemistry, Genetics and Molecular Biology0.61×5 works
  5. Dentistry0.54×0 works
  6. Immunology and Microbiology0.52×1 works
  7. Health Professions0.31×1 works
  8. Mathematics0.27×0 works
  9. Economics, Econometrics and Finance0.23×1 works
  10. Psychology0.23×1 works
  11. Engineering0.11×3 works
  12. Environmental Science0.09×1 works
  13. Agricultural and Biological Sciences0.05×0 works
  14. Physics and Astronomy0.05×0 works
  15. Computer Science0.04×0 works
  16. Chemistry0.03×0 works
  17. Nursing0.03×0 works
  18. Decision Sciences0.03×0 works
  19. Social Sciences0.03×1 works
  20. Materials Science0.01×0 works
  21. Business, Management and Accounting0.01×0 works

Who are the top researchers at Sendai Kousei Hospital?

Ranked on the quality score, Shunichi Sugawara, Kazunori Horie and Akiko Tanaka lead among researchers whose main affiliation is Sendai Kousei Hospital.

  1. 1 Shunichi Sugawara Japan · #185,378 worldwide 26k citations · 410 works
  2. 2 Kazunori Horie Japan · #1,187,188 worldwide 1.2k citations · 127 works
  3. 3 Akiko Tanaka Japan · #1,269,103 worldwide 1.1k citations · 132 works
  4. 4 Tsuyoshi Isawa Japan · #1,638,290 worldwide 918 citations · 77 works
  5. 5 Norio Tada Japan · #1,668,893 worldwide 6.1k citations · 272 works
  6. 6 Yoshihiro Haga Japan · #1,828,554 worldwide 719 citations · 26 works
  7. 7 Osamu Ishimoto Japan · #2,141,298 worldwide 1.5k citations · 51 works
  8. 8 Masaki Nakashima Japan · #2,224,752 worldwide 721 citations · 81 works
  9. 9 Jun Sugisaka Japan · #2,252,444 worldwide 1.1k citations · 63 works
  10. 10 Masato Nakahori Japan · #2,497,593 worldwide 782 citations · 30 works
All ranked researchers at Sendai Kousei Hospital

What are the most cited papers from Sendai Kousei Hospital?

The most cited paper from Sendai Kousei Hospital is "Gefitinib or Chemotherapy for Non–Small-Cell Lung Cancer with Mutated EGFR" (Makoto Maemondo et al., 2010), with 5,607 citations. Next come "Adjuvant atezolizumab after adjuvant chemotherapy in resected stage IB–IIIA non-small-cell lung cancer (IMpower010): a randomised, multicentre, open-label, phase 3 trial" (1,524) and "Dose-dense paclitaxel once a week in combination with carboplatin every 3 weeks for advanced ovarian cancer: a phase 3, open-label, randomised controlled trial" (733).

Most cited papers
#PaperReleasedCitations
1 Gefitinib or Chemotherapy for Non–Small-Cell Lung Cancer with Mutated EGFR Makoto Maemondo et al. · New England Journal of Medicine 23 Jun 2010 5,607
2 Adjuvant atezolizumab after adjuvant chemotherapy in resected stage IB–IIIA non-small-cell lung cancer (IMpower010): a randomised, multicentre, open-label, phase 3 trial Enriqueta Felip et al. · The Lancet 20 Sep 2021 1,524
3 Dose-dense paclitaxel once a week in combination with carboplatin every 3 weeks for advanced ovarian cancer: a phase 3, open-label, randomised controlled trial Noriyuki Katsumata, Makoto Yasuda, Fumiaki Takahashi et al. · The Lancet 19 Sep 2009 733
4 Erlotinib plus bevacizumab versus erlotinib alone in patients with EGFR-positive advanced non-squamous non-small-cell lung cancer (NEJ026): interim analysis of an open-label, randomised, multicentre, phase 3 trial Haruhiro Saito et al. · The Lancet Oncology Open access 8 Apr 2019 646
5 Pembrolizumab Plus Chemotherapy in Squamous Non–Small-Cell Lung Cancer: 5-Year Update of the Phase III KEYNOTE-407 Study Silvia Novello, Dariusz Mirosław Kowalski, Alexander Valerievich Luft et al. · Journal of Clinical Oncology Open access 3 Feb 2023 562
All 60 most cited papers, with filters and sorting

Which keywords describe research at Sendai Kousei Hospital?

By fractional works in 2022-now, weighted toward what it does more of than the world: Chemotherapy, Clinical Trials, Targeted Therapy, Epidemiology, Treatment, Risk Factors, 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-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. Epidemiology18▲ 2.8×49 topics
  2. Chemotherapy15▲ 12×17 topics
  3. Clinical Trials13▲ 12×11 topics
  4. Targeted Therapy12▲ 33×4 topics
  5. Treatment12▲ 5.7×19 topics
  6. Risk Factors11▲ 5.8×13 topics
  7. Prognostic Factors9▲ 13×12 topics
  8. Diagnosis8▲ 5.5×17 topics
  9. Surgical Management8▲ 12×16 topics
  10. Immunotherapy8▲ 6.8×16 topics
  11. Treatment Guidelines8▲ 23×5 topics
  12. Guidelines8▲ 10×10 topics
  13. Atherosclerosis8▲ 16×6 topics
  14. Complications8▲ 9.3×10 topics
  15. Genomic Profiling7▲ 43×2 topics
  16. Echocardiography7▲ 16×6 topics
  17. ALK Inhibitors7▲ 70×1 topic
  18. EGFR Mutations7▲ 70×1 topic
  19. Tumor Microenvironment7▲ 9.0×7 topics
  20. Percutaneous Coronary Intervention6▲ 28×4 topics
  21. Stroke Prevention6▲ 31×2 topics
  22. Magnetic Resonance Imaging6▲ 15×3 topics
  23. Clinical Practice Guidelines6▲ 6.5×10 topics
  24. Diabetes6▲ 7.1×6 topics
  25. Metastasis6▲ 10×7 topics
  26. Revascularization6▲ 21×3 topics
  27. Angioplasty6▲ 55×2 topics
  28. Adjuvant Therapy5▲ 26×2 topics
  29. Surgery5▲ 9.5×6 topics
  30. Heart Failure5▲ 7.1×7 topics
  31. Carotid Artery Stenosis5▲ 64×1 topic
  32. Endarterectomy5▲ 64×1 topic
  33. Claudication5▲ 80×1 topic
  34. Immune Checkpoint Blockade5▲ 26×1 topic
  35. PD-1 and PD-L15▲ 26×1 topic
  36. Peripheral Arterial Disease5▲ 80×1 topic
  37. Endovascular Repair5▲ 34×3 topics
  38. Surgical Aortic-Valve Replacement4▲ 37×1 topic
  39. Transcatheter Aortic-Valve Replacement4▲ 37×1 topic
  40. PET Imaging4▲ 16×4 topics

Which research topics does Sendai Kousei Hospital publish most on?

By volume in 2022-now: Lung Cancer Treatments and Mutations, Cerebrovascular and Carotid Artery Diseases, Peripheral Artery Disease Management and Cancer Immunotherapy and Biomarkers.

Lung Cancer Treatments a…7Lung Cancer Treatments and Mutations: 7 fractional worksCerebrovascular and Caro…5Cerebrovascular and Carotid Artery Diseases: 5 fractional worksPeripheral Artery Diseas…5Peripheral Artery Disease Management: 5 fractional worksCancer Immunotherapy and…5Cancer Immunotherapy and Biomarkers: 5 fractional worksCardiac Valve Diseases and Treatments: 4 fractional worksLung Cancer Research Studies: 4 fractional worksGastrointestinal disorde…3Gastrointestinal disorders and treatments: 3 fractional worksLung Cancer Diagnosis and Treatment: 3 fractional worksCongenital Diaphragmatic Hernia Studies: 3 fractional worksCoronary Interventions and Diagnostics: 3 fractional works
Pulmonary and Respiratory MedicineSurgeryOncologyCardiology and Cardiovascular Medicine

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

  1. 1 Lung Cancer Treatments and Mutations Pulmonary and Respiratory Medicine 7 works
  2. 2 Cerebrovascular and Carotid Artery Diseases Pulmonary and Respiratory Medicine 5 works
  3. 3 Peripheral Artery Disease Management Surgery 5 works
  4. 4 Cancer Immunotherapy and Biomarkers Oncology 5 works
  5. 5 Cardiac Valve Diseases and Treatments Cardiology and Cardiovascular Medicine 4 works
  6. 6 Lung Cancer Research Studies Oncology 4 works
  7. 7 Gastrointestinal disorders and treatments Surgery 3 works
  8. 8 Lung Cancer Diagnosis and Treatment Pulmonary and Respiratory Medicine 3 works
  9. 9 Congenital Diaphragmatic Hernia Studies Surgery 3 works
  10. 10 Coronary Interventions and Diagnostics Surgery 3 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 available51.3%not open48.7%

World: 40% of research is openly available.

with international co-authors5.1%domestic only94.9%

World: 18% is written across borders.

How has Sendai Kousei Hospital's research output changed?

Output in 2022-2025 was 12% 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 Sendai Kousei Hospital as a percentage of every work published that year, 0.00071% in 2024.

still counting0.0010%0.0020%Sendai Kousei Hospital0.00066% in 20251990200020102020

Fractional works of Sendai Kousei 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%Sendai Kousei Hospital10.5% in 2025all institutions10.0% in 202520102020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 13.0% in 2018.

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Sendai Kousei Hospital on Science Explorer

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