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Hospital / health system · Tehran · Iran

Imam Khomeini Hospital

In research, Imam Khomeini Hospital stands highest in Medicine (#1,415 of 10,443 worldwide), Health Sciences (#1,657 of 11,982 worldwide) and Life Sciences (#2,776 of 7,800 worldwide), 2022–2025. Relative to its size it is most specialised in Obstetrics and Gynecology and Infectious Diseases — Obstetrics and Gynecology is 6.5× its share of world research.

ikhc.tums.ac.irROR OpenAlex
World rank, 2022–2025
#4,736
of 28,054 · #9,530 all time
Rank in Iran
#93
of 301
Research works
3.3k
▲ 64% vs 2013–17
Citations
30k
9.2 per fractional work
Top-10% rate
12.1%
record average 16.5%
Open access
65%
world 28%

What is Imam Khomeini 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 #1,415 of 10,443 10.8%718 #2815
Health SciencesDomain #1,657 of 11,982 11.2%766 #3448
Life SciencesDomain #2,776 of 7,800 13.7%169 #5495
SurgerySubfield #1,060 of 1,816 9.1%122 #2300
Physical SciencesDomain #8,713 of 12,888 12.9%96 #14587
Biochemistry, Genetics and Molecular BiologyField #2,648 of 3,579 15.1%89 #5135
Social SciencesDomain #8,489 of 10,521 16.5%78 #13062

Each strip is that field’s whole ranked pool, with the notch where Imam Khomeini 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#2,815 #1,415
  2. Health Sciences#3,448 #1,657
  3. Life Sciences#5,495 #2,776
  4. Surgery#2,300 #1,060
  5. Physical Sciences#14,587 #8,713
  6. Biochemistry, Genetics and Molecular Biology#5,135 #2,648
  7. Social Sciences#13,062 #8,489
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 Imam Khomeini Hospital specialise in?

Where its research is concentrated relative to its size: Obstetrics and Gynecology takes 6.5× the share of its output that it takes of world research.

  1. Obstetrics and GynecologySubfield · 20.6 works6.5×
  2. Infectious DiseasesSubfield · 42.1 works5.6×
← 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: 0.49× its world share, 26 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.50× its world share, 89 worksBiochemistry, Geneti…Immunology and Microbiology: 2.35× its world share, 26 worksImmunology and Micro…Neuroscience: 1.25× its world share, 22 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 1.44× its world share, 6 worksPharmacology, Toxico…Chemical Engineering: 0.23× its world share, 1 worksChemical EngineeringChemistry: 0.21× its world share, 4 worksChemistryComputer Science: 0.17× its world share, 15 worksComputer ScienceEarth and Planetary Sciences: 0.16× its world share, 3 worksEarth and Planetary …Energy: 0.11× its world share, 1 worksEnergyEngineering: 0.22× its world share, 37 worksEngineeringEnvironmental Science: 0.42× its world share, 23 worksEnvironmental ScienceMaterials Science: 0.19× its world share, 7 worksMaterials ScienceMathematics: 0.21× its world share, 3 worksMathematicsPhysics and Astronomy: 0.13× its world share, 3 worksPhysics and AstronomyDentistry: 1.38× its world share, 8 worksDentistryHealth Professions: 0.97× its world share, 28 worksHealth ProfessionsMedicine: 3.36× its world share, 718 worksMedicineNursing: 1.73× its world share, 9 worksNursingVeterinary: 2.37× its world share, 4 worksVeterinaryArts and Humanities: 0.13× its world share, 4 worksArts and HumanitiesBusiness, Management and Accounting: 0.12× its world share, 4 worksBusiness, Management…Decision Sciences: 0.17× its world share, 2 worksDecision SciencesEconomics, Econometrics and Finance: 0.19× its world share, 4 worksEconomics, Econometr…Psychology: 0.90× its world share, 30 worksPsychologySocial Sciences: 0.23× its world share, 33 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Medicine, 3.4×. Every wedge is a field page.

Who are the top researchers at Imam Khomeini Hospital?

Ranked on the composite score, Masoud Eslami lead among researchers whose main affiliation is Imam Khomeini Hospital.

  1. 1 Masoud Eslami Iran · #882,248 worldwide 40 citations · 15 works
All ranked researchers at Imam Khomeini Hospital

Which keywords describe research at Imam Khomeini Hospital?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Epidemiology, Inflammation, Diagnosis, Treatment, SARS-CoV-2, Cancer, Quality of Life and Pathophysiology.

▲ 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. Epidemiology151▲ 3.4×126 topics
  2. Inflammation66▲ 2.8×78 topics
  3. Treatment46▲ 3.4×47 topics
  4. Diagnosis46▲ 4.4×40 topics
  5. Quality of Life44▲ 2.8×42 topics
  6. Cancer44▲ 2.9×54 topics
  7. Pandemic38▲ 3.2×9 topics
  8. Oxidative Stress36▲ 1.98×57 topics
  9. Cardiovascular Disease35▲ 2.8×36 topics
  10. COVID-1932▲ 2.1×21 topics
  11. Metabolic Syndrome31▲ 3.5×22 topics
  12. Chemotherapy31▲ 4.0×24 topics
  13. SARS-CoV-230▲ 8.2×6 topics
  14. Complications29▲ 5.2×17 topics
  15. Management29▲ 3.3×29 topics
  16. Immune Response28▲ 4.5×17 topics
  17. Risk Factors28▲ 2.3×32 topics
  18. Clinical Practice Guidelines28▲ 4.6×14 topics
  19. Public Health27▲ 1.69×43 topics
  20. Pathophysiology26▲ 7.9×11 topics
  21. Surgical Management25▲ 5.4×20 topics
  22. Depression24▲ 2.5×20 topics
  23. ACE2 Receptor23▲ 8.6×3 topics
  24. Obesity23▲ 2.7×24 topics
  25. Thrombosis23▲ 7.3×7 topics
  26. Insulin Resistance22▲ 4.4×10 topics
  27. Mortality21▲ 3.2×12 topics
  28. Clinical Trials20▲ 2.7×17 topics
  29. Pathogenesis20▲ 3.4×24 topics
  30. Prognostic Factors19▲ 4.0×14 topics
  31. Radiotherapy19▲ 4.5×13 topics
  32. Antibiotic Resistance18▲ 4.3×12 topics
  33. Surgery18▲ 4.6×12 topics
  34. Immunity16▲ 3.6×10 topics
  35. Clinical Characteristics16▲ 11×2 topics
  36. Antiviral Treatment16▲ 13×1 topic
  37. Cytokine Storm16▲ 13×1 topic
  38. Cognitive Impairment15▲ 5.3×9 topics
  39. Prenatal Diagnosis12▲ 7.3×7 topics
  40. Infertility12▲ 7.5×4 topics

Which research topics does Imam Khomeini Hospital publish most on?

By volume in 2022–2025: COVID-19 Clinical Research Studies, SARS-CoV-2 and COVID-19 Research, Long-Term Effects of COVID-19 and Liver Disease Diagnosis and Treatment.

COVID-19 Clinical Resear…16COVID-19 Clinical Research Studies: 16 fractional worksSARS-CoV-2 and COVID-19 Research: 7 fractional worksLong-Term Effects of COVID-19: 7 fractional worksLiver Disease Diagnosis and Treatment: 7 fractional worksAntifungal resistance and susceptibility: 6 fractional worksCOVID-19 and Mental Health: 6 fractional worksTotal Knee Arthroplasty …6Total Knee Arthroplasty Outcomes: 6 fractional worksCOVID-19 and healthcare impacts: 6 fractional worksOrthopaedic implants and arthroplasty: 5 fractional worksOvarian function and dis…5Ovarian function and disorders: 5 fractional works
Infectious DiseasesNeurologyEpidemiologyClinical Psychology3 others

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

  1. 1 COVID-19 Clinical Research Studies Infectious Diseases 16 works
  2. 2 SARS-CoV-2 and COVID-19 Research Infectious Diseases 7 works
  3. 3 Long-Term Effects of COVID-19 Neurology 7 works
  4. 4 Liver Disease Diagnosis and Treatment Epidemiology 7 works
  5. 5 Antifungal resistance and susceptibility Infectious Diseases 6 works
  6. 6 COVID-19 and Mental Health Clinical Psychology 6 works
  7. 7 Total Knee Arthroplasty Outcomes Surgery 6 works
  8. 8 COVID-19 and healthcare impacts Oncology 6 works
  9. 9 Orthopaedic implants and arthroplasty Surgery 5 works
  10. 10 Ovarian function and disorders Reproductive Medicine 5 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 available65.1%not open34.9%

World: 28% of research is openly available.

with international co-authors11.2%domestic only88.8%

World: 19% is written across borders.

How has Imam Khomeini Hospital's research output changed?

Output in 2018–2022 was 64% 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 Tehran

All research institutions in Tehran

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.