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Hospital / health system · London · United Kingdom

Imperial College Healthcare NHS Trust

In research, Imperial College Healthcare NHS Trust stands highest in Medicine (#443 of 10,443 worldwide), Health Sciences (#564 of 11,982 worldwide) and Life Sciences (#1,853 of 7,800 worldwide), 2022–2025. Relative to its size it is most specialised in Emergency Medicine and Reproductive Medicine — Emergency Medicine is 8.8× its share of world research.

imperial.nhs.ukROR OpenAlex
World rank, 2022–2025
#2,563
of 28,054 · #3,849 all time
Rank in United Kingdom
#102
of 1,094
Research works
4.8k
▲ 40% vs 2013–17
Citations
84k
17.3 per fractional work
Top-10% rate
16.7%
record average 16.5%
Open access
53%
world 28%

What is Imperial College Healthcare NHS Trust 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 #443 of 10,443 16.5%965 #805
Health SciencesDomain #564 of 11,982 16.4%1,065 #910
Life SciencesDomain #1,853 of 7,800 20.1%113 #2455
SurgerySubfield #489 of 1,816 15.7%153 #792
Pulmonary and Respiratory MedicineSubfield #564 of 1,144 14.0%92 #730
Health ProfessionsField #999 of 1,928 14.9%91 #1075
Cardiology and Cardiovascular MedicineSubfield #445 of 738 17.4%71 #762
EpidemiologySubfield #627 of 976 15.6%68 #897
Public Health, Environmental and Occupational HealthSubfield #630 of 828 18.1%61 #1140
Social SciencesDomain #8,493 of 10,521 15.8%79 #11474

Each strip is that field’s whole ranked pool, with the notch where Imperial College Healthcare NHS Trust 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#805 #443
  2. Health Sciences#910 #564
  3. Life Sciences#2,455 #1,853
  4. Surgery#792 #489
  5. Pulmonary and Respiratory Medicine#730 #564
  6. Health Professions#1,075 #999
  7. Cardiology and Cardiovascular Medicine#762 #445
  8. Epidemiology#897 #627
  9. Public Health, Environmental and Occupational Health#1,140 #630
  10. Social Sciences#11,474 #8,493
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 Imperial College Healthcare NHS Trust specialise in?

Where its research is concentrated relative to its size: Emergency Medicine takes 8.8× the share of its output that it takes of world research.

  1. Emergency MedicineSubfield · 27.8 works8.8×
  2. Reproductive MedicineSubfield · 22.2 works7.6×
← 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: 0.11× its world share, 6 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.82× its world share, 57 worksBiochemistry, Geneti…Immunology and Microbiology: 2.37× its world share, 31 worksImmunology and Micro…Neuroscience: 0.75× its world share, 16 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.68× its world share, 3 worksPharmacology, Toxico…Chemistry: 0.04× its world share, 1 worksChemistryComputer Science: 0.09× its world share, 9 worksComputer ScienceEnergy: 0.02× its world share, 0 worksEnergyEngineering: 0.11× its world share, 22 worksEngineeringEnvironmental Science: 0.07× its world share, 5 worksEnvironmental ScienceMaterials Science: 0.02× its world share, 1 worksMaterials ScienceMathematics: 0.18× its world share, 3 worksMathematicsPhysics and Astronomy: 0.09× its world share, 2 worksPhysics and AstronomyDentistry: 0.46× its world share, 3 worksDentistryHealth Professions: 2.66× its world share, 91 worksHealth ProfessionsMedicine: 3.86× its world share, 965 worksMedicineNursing: 0.77× its world share, 5 worksNursingVeterinary: 0.51× its world share, 1 worksVeterinaryArts and Humanities: 0.13× its world share, 5 worksArts and HumanitiesBusiness, Management and Accounting: 0.13× its world share, 6 worksBusiness, Management…Decision Sciences: 0.22× its world share, 3 worksDecision SciencesEconomics, Econometrics and Finance: 0.62× its world share, 17 worksEconomics, Econometr…Psychology: 0.61× its world share, 24 worksPsychologySocial Sciences: 0.15× its world share, 25 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Medicine, 3.9×. Every wedge is a field page.

Who are the top researchers at Imperial College Healthcare NHS Trust?

Ranked on the composite score, Phang Boon Lim, Karim Meeran and Ghada Mikhail lead among researchers whose main affiliation is Imperial College Healthcare NHS Trust.

  1. 1 Phang Boon Lim United Kingdom · #95,503 worldwide 281 citations · 25 works
  2. 2 Karim Meeran United Kingdom · #100,092 worldwide 301 citations · 83 works
  3. 3 Ghada Mikhail United Kingdom · #132,237 worldwide 170 citations · 42 works
  4. 4 Neil Tolley United Kingdom · #133,905 worldwide 134 citations · 38 works
  5. 5 Lesley Regan United Kingdom · #140,331 worldwide 161 citations · 24 works
  6. 6 Elizabeth Whittaker United Kingdom · #158,482 worldwide 248 citations · 23 works
  7. 7 Stephen Robinson United Kingdom · #162,346 worldwide 166 citations · 21 works
  8. 8 Onn Min Kon United Kingdom · #167,746 worldwide 183 citations · 70 works
  9. 9 Ian Maconochie United Kingdom · #191,650 worldwide 131 citations · 63 works
  10. 10 Nishat Bharwani United Kingdom · #205,389 worldwide 94 citations · 25 works
All ranked researchers at Imperial College Healthcare NHS Trust

Which keywords describe research at Imperial College Healthcare NHS Trust?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Epidemiology, Diagnosis, Quality of Life, Mortality, Guidelines, Treatment, Management and Complications.

▲ 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. Epidemiology163▲ 3.2×119 topics
  2. Quality of Life66▲ 3.5×44 topics
  3. Inflammation62▲ 2.3×71 topics
  4. Diagnosis61▲ 5.1×36 topics
  5. Treatment55▲ 3.5×42 topics
  6. Cardiovascular Disease48▲ 3.3×34 topics
  7. Risk Factors46▲ 3.2×28 topics
  8. Management45▲ 4.4×27 topics
  9. Mortality45▲ 6.0×13 topics
  10. Guidelines41▲ 6.8×12 topics
  11. Complications39▲ 6.0×17 topics
  12. Public Health37▲ 1.95×46 topics
  13. Chemotherapy36▲ 4.0×24 topics
  14. Clinical Practice Guidelines35▲ 4.9×14 topics
  15. Clinical Trials33▲ 3.8×17 topics
  16. Metabolic Syndrome31▲ 3.0×22 topics
  17. Primary Care31▲ 6.3×14 topics
  18. Immunotherapy31▲ 3.3×19 topics
  19. Heart Failure27▲ 4.8×13 topics
  20. Diabetes27▲ 4.2×15 topics
  21. Biomarkers27▲ 3.0×16 topics
  22. Obesity26▲ 2.7×19 topics
  23. Radiotherapy26▲ 5.2×13 topics
  24. Echocardiography23▲ 6.6×8 topics
  25. Quality Improvement23▲ 9.4×8 topics
  26. Immune Response22▲ 3.0×19 topics
  27. Surgery22▲ 4.9×11 topics
  28. Clinical Guidelines21▲ 5.7×9 topics
  29. Surgical Management21▲ 3.9×20 topics
  30. Medical Education21▲ 6.2×11 topics
  31. Rehabilitation21▲ 4.0×10 topics
  32. Critical Care20▲ 6.6×8 topics
  33. Cardiovascular Risk20▲ 4.8×8 topics
  34. Patient Satisfaction20▲ 4.8×9 topics
  35. Health Outcomes19▲ 5.4×8 topics
  36. Survival Analysis19▲ 5.4×6 topics
  37. Myocardial Infarction19▲ 6.1×7 topics
  38. Infection17▲ 5.3×7 topics
  39. Chronic Kidney Disease17▲ 5.4×8 topics
  40. Stroke16▲ 6.7×7 topics

Which research topics does Imperial College Healthcare NHS Trust publish most on?

By volume in 2022–2025: Cardiac Valve Diseases and Treatments, Trauma and Emergency Care Studies, Health Systems, Economic Evaluations, Quality of Life and Cardiac Imaging and Diagnostics.

Cardiac Valve Diseases a…11Cardiac Valve Diseases and Treatments: 11 fractional worksTrauma and Emergency Car…9Trauma and Emergency Care Studies: 9 fractional worksHealth Systems, Economic Evaluations, Quality of Life: 9 fractional worksCardiac Imaging and Diagnostics: 8 fractional worksOvarian cancer diagnosis and treatment: 8 fractional worksChild and Adolescent Health: 8 fractional worksCardiac, Anesthesia and Surgical Outcomes: 7 fractional worksSurgical Simulation and …7Surgical Simulation and Training: 7 fractional worksPalliative Care and End-of-Life Issues: 7 fractional worksTracheal and airway disorders: 7 fractional works
Cardiology and Cardiovascular MedicineEmergency MedicineEconomics and EconometricsRadiology, Nuclear Medicine and Imaging5 others

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

  1. 1 Cardiac Valve Diseases and Treatments Cardiology and Cardiovascular Medicine 11 works
  2. 2 Trauma and Emergency Care Studies Emergency Medicine 9 works
  3. 3 Health Systems, Economic Evaluations, Quality of Life Economics and Econometrics 9 works
  4. 4 Cardiac Imaging and Diagnostics Radiology, Nuclear Medicine and Imaging 8 works
  5. 5 Ovarian cancer diagnosis and treatment Reproductive Medicine 8 works
  6. 6 Child and Adolescent Health General Health Professions 8 works
  7. 7 Cardiac, Anesthesia and Surgical Outcomes Cardiology and Cardiovascular Medicine 7 works
  8. 8 Surgical Simulation and Training Surgery 7 works
  9. 9 Palliative Care and End-of-Life Issues Public Health, Environmental and Occupational Health 7 works
  10. 10 Tracheal and airway disorders Pulmonary and Respiratory Medicine 7 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 available53.4%not open46.6%

World: 28% of research is openly available.

with international co-authors21.1%domestic only78.9%

World: 19% is written across borders.

How has Imperial College Healthcare NHS Trust's research output changed?

Output in 2018–2022 was 40% 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 London

All research institutions in London

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.