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Topic · Radiology, Nuclear Medicine and Imaging

Radiation Dose and Imaging

Radiation Dose and Imaging is a research topic within Radiology, Nuclear Medicine and Imaging. Science Explorer counts 48k research works in it since 1950. 10.0% of them reached the world's top 10% most cited for their field and year.

This cluster of papers focuses on the health risks associated with radiation exposure from medical imaging, particularly computed tomography (CT) scans. It explores the potential cancer risks, dose optimization techniques, and radiological protection measures related to ionizing radiation. The cluster also addresses the impact of pediatric CT scans and occupational exposure to radiation.

  • Radiation Exposure
  • Computed Tomography
  • Cancer Risk
  • Diagnostic Imaging
  • Ionizing Radiation
  • Pediatric CT Scans
  • Dose Reduction
  • Radiological Protection
  • Image Quality
  • Occupational Exposure
Research works
48k
fractional, since 1950
In the world top 10%
4.8k
per year above
Top-10% rate
10.0%
share of its works in the world top 10%
Growth, 2018-21 → 2022-25
-4%
the tick is no change
Largest producer
United States
36% of the 10 largest, 2022-now
Radiation Dose and Imaging

This ranks research output and citation impact. It says nothing about the quality of diagnosis, treatment or care.

Which countries lead Radiation Dose and Imaging research?

By volume, the United States and China publish the most (1.7k and 545 works in 2022-now).

By volume, 2022-now

  1. 1 United States 1.7k works
  2. 2 China 545 works
  3. 3 Japan 478 works
  4. 4 Germany 408 works
  5. 5 United Kingdom 328 works
  6. 6 India 324 works
  7. 7 Italy 250 works
  8. 8 Brazil 226 works
  9. 9 Russia 223 works
  10. 10 France 207 works

How concentrated that is

The same countries as shares of everything the list above accounts for. A node where two countries do two thirds of the work and one spread evenly across twelve read alike as a ranking and not at all alike here.

United States: 36.4%China: 11.6%Japan: 10.2%Germany: 8.7%6 others listed: 33.2%36%largest
United States1,706 · 36.4%China545 · 11.6%Japan478 · 10.2%Germany408 · 8.7%6 others listed1,558 · 33.2%

Shares of the rows listed above, not of the whole node.

Which institutions lead Radiation Dose and Imaging research?

By volume in 2022-now, Harvard University publishes the most Radiation Dose and Imaging research, followed by Mayo Clinic and Johns Hopkins University.

By volume, 2022-now

  1. 1 Harvard UniversityUnited States 78 works
  2. 2 Mayo ClinicUnited States 59 works
  3. 3 Johns Hopkins UniversityUnited States 31 works
  4. 4 Department of Atomic EnergyIndia 31 works
  5. 5 University of Wisconsin–MadisonUnited States 29 works
  6. 6 University of North Carolina at Chapel HillUnited States 27 works
  7. 7 Duke UniversityUnited States 27 works
  8. 8 University of PennsylvaniaUnited States 26 works
  9. 9 University of TorontoCanada 26 works
  10. 10 Russian Academy of SciencesRussia 25 works

Who are the leading researchers in Radiation Dose and Imaging?

The most-cited researchers publishing on Radiation Dose and Imaging include David Moher, Freddie Bray and Cyrus Cooper.

  1. 1 David Moher Canada 898k citations
  2. 2 Freddie Bray France 550k citations
  3. 3 Cyrus Cooper United Kingdom 342k citations
  4. 4 Valery L. Feigin New Zealand 341k citations
  5. 5 Matthias Egger Switzerland 326k citations
  6. 6 John P. A. Ioannidis United States 317k citations
  7. 7 Gordon Henry Guyatt Canada 315k citations
  8. 8 Elie A. Akl Canada 313k citations

Ranked by citations received across their whole record, among researchers with at least three works on this topic.

What are the most cited papers in Radiation Dose and Imaging?

The most cited paper in Radiation Dose and Imaging is "Reduced Lung-Cancer Mortality with Low-Dose Computed Tomographic Screening" (The National Lung Screening Trial Research Team, 2011), with 11,266 citations. Next come "Computed Tomography — An Increasing Source of Radiation Exposure" (8,786) and "Radiation exposure from CT scans in childhood and subsequent risk of leukaemia and brain tumours: a retrospective cohort study" (3,723).

Most cited papers
#PaperReleasedCitations
1 Reduced Lung-Cancer Mortality with Low-Dose Computed Tomographic Screening The National Lung Screening Trial Research Team · New England Journal of Medicine Open access 29 Jun 2011 11,266
2 Computed Tomography — An Increasing Source of Radiation Exposure David J. Brenner, Eric J. Hall · New England Journal of Medicine 28 Nov 2007 8,786
3 Radiation exposure from CT scans in childhood and subsequent risk of leukaemia and brain tumours: a retrospective cohort study Mark Stephen Pearce, Jane A Salotti, Mark P. Little et al. · The Lancet Open access 6 Jun 2012 3,723
4 Systematic reviews: CRD's guidance for undertaking reviews in health care Evelina Tacconelli · The Lancet Infectious Diseases Open access 23 Mar 2010 3,291
5 Estimated Risks of Radiation-Induced Fatal Cancer from Pediatric CT David J. Brenner, Carl D. Elliston, Eric J. Hall et al. · American Journal of Roentgenology Feb 2001 3,246
All 100 most cited papers, with filters and sorting

Where is Radiation Dose and Imaging research done?

The largest centres of Radiation Dose and Imaging research in 2022-now are Moscow (Russia), Seoul (South Korea), Beijing (China) and New York (United States).

Largest cities, 2022-now

  1. 1 MoscowRussia 123 works
  2. 2 SeoulSouth Korea 105 works
  3. 3 BeijingChina 102 works
  4. 4 New YorkUnited States 93 works
  5. 5 TokyoJapan 88 works
  6. 6 LondonUnited Kingdom 87 works
  7. 7 BostonUnited States 73 works
  8. 8 RiyadhSaudi Arabia 67 works
  9. 9 ShanghaiChina 66 works
  10. 10 ParisFrance 56 works
See Radiation Dose and Imaging on the map

Where is the best place to study Radiation Dose and Imaging?

Among universities, judged by research, University of Zurich, University of Würzburg and Erasmus University Rotterdam score highest, combining excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.

0%20%40%mean 28.15%fractional works in this field (log) →share of work in the world top 10% →Erasmus University R…University of ZurichUniversity of WürzburgHarvard University
above the meannear itbelow it

One dot per university in the first ten of the table below, at the default weights. The upper left is the interesting corner: small places doing unusually strong work.

Excellenceshare of its work in the world top 10%, 2022-now and all time averaged
40%
Specialisationhow much of its work is in this field, counted up to 10× the world share
10%
Sizeits output in this field, on a log scale
30%
Growthoutput growth, counted from -20% to +20%
10%
Internationalshare of its work with a co-author abroad
10%
Each slider sets a weight; the share it gets of the score is beside it.
#UniversityScoreTop 10%SpecialisationWorksGrowth
1University of ZurichSwitzerland 71.332.8%5.4×25 +8.9%
2University of WürzburgGermany 63.328.8%9.9×21 +174.0%
3Erasmus University RotterdamNetherlands 60.537.5%3.1×11 +42.0%
4Harvard UniversityUnited States 60.017.8%3.7×78 -27.8%
5Maastricht UniversityNetherlands 60.040.3%3.5×9 +2.8%
6Princess Nourah bint Abdulrahman UniversitySaudi Arabia 55.820.8%6.0×10 +254.8%
7Johannes Gutenberg University MainzGermany 55.231.3%5.4×14 +50.8%
8New York UniversityUnited States 51.728.5%2.6×20 +8.1%
9Université Hassan 1erMorocco 49.723.3%22.2×11 +289.3%
10Tohoku UniversityJapan 49.520.4%3.8×17 +62.7%

Universities only. The score blends excellence (40%), size (30%), specialisation (10%), growth (10%), international reach (10%), 2022-now; growth compares 2018-21 with 2022-25 and counts up to +20%, since a jump from a small base is mostly noise.

Every institution in Radiation Dose and Imaging, country by country

Is Radiation Dose and Imaging research growing?

Output in 2022-2025 was 4% lower than in 2018-2021, peaking in 2016.

still counting19801990200020102020
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 Radiation Dose and Imaging as a percentage of every work published that year, 0.034% in 2024.

still counting0.020%0.040%0.060%Radiation Dose and Imaging0.031% in 202519801990200020102020

Fractional works of Radiation Dose and Imaging 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.

still counting5%10%15%Radiation Dose and Imaging10.1% in 2025200020102020

Of each year's works in it, the share that reached the world's 10% most cited for their field and year. A field is the world for its own topics, so there is no other line to hold it against.

Which topics inside it are moving

Growth and decline on one axis around a shared zero. Two lists side by side hide the thing that matters: whether the growth dwarfs the decline, or the other way round.

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