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Hospital / health system · Okayama · Japan

Sakakibara Hospital

In research, Sakakibara Hospital stands highest in Medicine (#8,158 of 10,443 worldwide), Health Sciences (#9,981 of 11,982 worldwide) and Cardiology and Cardiovascular Medicine (#641 of 738 worldwide), 2022–2025. Relative to its size it is most specialised in Cardiology and Cardiovascular Medicine and Pulmonary and Respiratory Medicine — Cardiology and Cardiovascular Medicine is 37.4× its share of world research.

sakakibara-hp.comROR OpenAlex
World rank, 2022–2025
#25,474
of 28,054 · #32,343 all time
Rank in Japan
#893
of 1,070
Research works
1.1k
▼ 3% vs 2013–17
Citations
10k
9.4 per fractional work
Top-10% rate
7.3%
record average 16.5%
Open access
47%
world 28%

What is Sakakibara 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 #8,158 of 10,443 7.6%178 #9846
Health SciencesDomain #9,981 of 11,982 7.6%182 #12717
Cardiology and Cardiovascular MedicineSubfield #641 of 738 9.2%80 #1238

Each strip is that field’s whole ranked pool, with the notch where Sakakibara 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#9,846 #8,158
  2. Health Sciences#12,717 #9,981
  3. Cardiology and Cardiovascular Medicine#1,238 #641
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 Sakakibara Hospital specialise in?

Where its research is concentrated relative to its size: Cardiology and Cardiovascular Medicine takes 37.4× the share of its output that it takes of world research.

  1. Cardiology and Cardiovascular MedicineSubfield · 80.1 works37×
  2. Pulmonary and Respiratory MedicineSubfield · 26.2 works8.4×
← 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.

Biochemistry, Genetics and Molecular Biology: 0.56× its world share, 6 worksBiochemistry, Geneti…Immunology and Microbiology: 0.18× its world share, 0 worksImmunology and Micro…Neuroscience: 0.76× its world share, 2 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.11× its world share, 0 worksPharmacology, Toxico…Computer Science: 0.02× its world share, 0 worksComputer ScienceEngineering: 0.28× its world share, 9 worksEngineeringEnvironmental Science: 0.07× its world share, 1 worksEnvironmental SciencePhysics and Astronomy: 0.02× its world share, 0 worksPhysics and AstronomyDentistry: 0.40× its world share, 0 worksDentistryHealth Professions: 0.65× its world share, 4 worksHealth ProfessionsMedicine: 4.54× its world share, 178 worksMedicineNursing: 0.26× its world share, 0 worksNursingEconomics, Econometrics and Finance: 0.05× its world share, 0 worksEconomics, Econometr…Psychology: 0.18× its world share, 1 worksPsychologySocial Sciences: 0.05× 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, 4.5×. Every wedge is a field page.

Who are the top researchers at Sakakibara Hospital?

Ranked on the composite score, Jun Shimizu, Shuichiro Takanashi and Minoru Tabata lead among researchers whose main affiliation is Sakakibara Hospital.

  1. 1 Jun Shimizu Japan · #78,451 worldwide 195 citations · 31 works
  2. 2 Shuichiro Takanashi Japan · #193,756 worldwide 188 citations · 58 works
  3. 3 Minoru Tabata Japan · #227,270 worldwide 117 citations · 62 works
  4. 4 Keitaro Mahara Japan · #250,183 worldwide 92 citations · 30 works
  5. 5 Toshinori Totsugawa Japan · #496,313 worldwide 52 citations · 27 works
  6. 6 Hitoshi Kasegawa Japan · #528,672 worldwide 33 citations · 23 works
  7. 7 Morimasa Takayama Japan · #667,562 worldwide 127 citations · 88 works
  8. 8 Tomoki Shimokawa Japan · #710,598 worldwide 36 citations · 31 works
  9. 9 Ida T Japan · #788,846 worldwide 19 citations · 15 works
  10. 10 Hidenori Yoshitaka Japan · #887,925 worldwide 35 citations · 34 works
All ranked researchers at Sakakibara Hospital

Which keywords describe research at Sakakibara Hospital?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Echocardiography, Heart Failure, Guidelines, Surgical Aortic-Valve Replacement, Transcatheter Aortic-Valve Replacement, Myocardial Infarction, Catheter Ablation 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. Echocardiography31▲ 56×8 topics
  2. Heart Failure28▲ 32×11 topics
  3. Guidelines19▲ 20×6 topics
  4. Surgical Aortic-Valve Replacement18▲ 121×1 topic
  5. Transcatheter Aortic-Valve Replacement18▲ 121×1 topic
  6. Catheter Ablation17▲ 67×2 topics
  7. Myocardial Infarction17▲ 35×6 topics
  8. Epidemiology15▲ 1.85×25 topics
  9. Endovascular Repair14▲ 83×3 topics
  10. Diagnosis14▲ 7.2×12 topics
  11. Treatment14▲ 5.5×12 topics
  12. Aortic Aneurysm13▲ 101×2 topics
  13. Arrhythmias12▲ 62×2 topics
  14. Aortic Dissection11▲ 127×1 topic
  15. Bicuspid Aortic Valve11▲ 127×1 topic
  16. Cardiac Imaging10▲ 42×3 topics
  17. Obesity10▲ 6.4×9 topics
  18. Percutaneous Coronary Intervention10▲ 35×4 topics
  19. Cardiovascular Disease9▲ 4.1×18 topics
  20. Dilated Cardiomyopathy9▲ 64×2 topics
  21. Stroke Prevention9▲ 37×2 topics
  22. Sudden Cardiac Death9▲ 52×2 topics
  23. Atrial Fibrillation9▲ 43×2 topics
  24. Cardiomyopathy9▲ 47×3 topics
  25. Cardiovascular Risk9▲ 14×3 topics
  26. Chamber Quantification9▲ 54×1 topic
  27. Diastolic Function9▲ 54×1 topic
  28. Mortality Risk8▲ 17×3 topics
  29. Electroanatomic Mapping8▲ 83×1 topic
  30. Radiofrequency Ablation8▲ 39×2 topics
  31. Ventricular Tachycardia8▲ 83×1 topic
  32. Anticoagulant Therapy8▲ 33×1 topic
  33. Risk Stratification8▲ 57×1 topic
  34. Magnetic Resonance Imaging8▲ 15×4 topics
  35. Congenital Heart Disease8▲ 45×3 topics
  36. Prophylaxis7▲ 28×2 topics
  37. Complications7▲ 6.8×6 topics
  38. Coronary Artery Disease7▲ 29×3 topics
  39. Cardiac Surgery6▲ 44×2 topics
  40. Neurodevelopmental Outcomes6▲ 17×5 topics

Which research topics does Sakakibara Hospital publish most on?

By volume in 2022–2025: Cardiac Valve Diseases and Treatments, Aortic Disease and Treatment Approaches, Cardiovascular Function and Risk Factors and Cardiac Arrhythmias and Treatments.

Cardiac Valve Diseases a…18Cardiac Valve Diseases and Treatments: 18 fractional worksAortic Disease and Treatment Approaches: 11 fractional worksCardiovascular Function …9Cardiovascular Function and Risk Factors: 9 fractional worksCardiac Arrhythmias and …8Cardiac Arrhythmias and Treatments: 8 fractional worksAtrial Fibrillation Management and Outcomes: 8 fractional worksInfective Endocarditis Diagnosis and Management: 6 fractional worksCongenital Heart Disease…6Congenital Heart Disease Studies: 6 fractional worksCardiac Imaging and Diagnostics: 6 fractional worksCardiac pacing and defibrillation studies: 6 fractional worksCardiac Structural Anomalies and Repair: 6 fractional works
Cardiology and Cardiovascular MedicinePulmonary and Respiratory MedicineEpidemiologyRadiology, Nuclear Medicine and Imaging1 others

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

  1. 1 Cardiac Valve Diseases and Treatments Cardiology and Cardiovascular Medicine 18 works
  2. 2 Aortic Disease and Treatment Approaches Pulmonary and Respiratory Medicine 11 works
  3. 3 Cardiovascular Function and Risk Factors Cardiology and Cardiovascular Medicine 9 works
  4. 4 Cardiac Arrhythmias and Treatments Cardiology and Cardiovascular Medicine 8 works
  5. 5 Atrial Fibrillation Management and Outcomes Cardiology and Cardiovascular Medicine 8 works
  6. 6 Infective Endocarditis Diagnosis and Management Epidemiology 6 works
  7. 7 Congenital Heart Disease Studies Epidemiology 6 works
  8. 8 Cardiac Imaging and Diagnostics Radiology, Nuclear Medicine and Imaging 6 works
  9. 9 Cardiac pacing and defibrillation studies Cardiology and Cardiovascular Medicine 6 works
  10. 10 Cardiac Structural Anomalies and Repair Surgery 6 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 available47.2%not open52.8%

World: 28% of research is openly available.

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

World: 19% is written across borders.

How has Sakakibara Hospital's research output changed?

Output in 2018–2022 was 3% lower 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 Okayama

All research institutions in Okayama

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.