Evidence map›Paper›PMID 22258710›Full record

Trial reportEuropean journal of nuclear medicine and molecular imaging2012

18F-Fluorodeoxyglucose positron emission tomography pulmonary imaging in idiopathic pulmonary fibrosis is reproducible: implications for future clinical trials.

Thida Win, Tryphon Lambrou, Brian F Hutton, Irfan Kayani, Nicholas J Screaton, Joanna C Porter, Toby M Maher, Raymondo Endozo, Robert I Shortman, Pauline Lukey and 1 more

Abstract readClinical Trial
PubMed Publisher
In one paragraph

Trial report in European journal of nuclear medicine and molecular imaging, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.0field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

27 citing papers in PubMed, 56 citations in OpenAlex.

  1. PulmonaryEuropean journal of nuclear medicine and molecular imaging · 2018
    Trial
  2. Pulmonary [European journal of nuclear medicine and molecular imaging · 2026
    Article
  3. Article
  4. Review
  5. Article
  6. PET/CT and inflammatory mediators in systemic sclerosis-associated interstitial lung disease.Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia · 2022
    Article
  7. Arthritis research & therapy · 2021
    Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Review
  14. Frontiers in immunology · 2019
    Article
  15. Article
  16. PretreatmentTechnology in cancer research & treatment · 2018
    Article
  17. [Respiratory research · 2017
    Article
  18. Article
  19. Quantification of Lung PET Images: Challenges and Opportunities.Journal of nuclear medicine : official publication, Society of Nuclear Medicine · 2017
    Review
  20. Matrix Metalloproteinase-Targeted Imaging of Lung Inflammation and Remodeling.Journal of nuclear medicine : official publication, Society of Nuclear Medicine · 2017
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 5 institutions in 1 country.

Thida WinRespiratory Medicine, Lister Hospital, Stevenage, UK.
Tryphon Lambrou
Brian F Hutton
Irfan Kayani
Nicholas J Screaton
Joanna C Porter
Toby M Maher
Raymondo Endozo
Robert I Shortman
Pauline Lukey
Ashley M Groves
University College London · GBAge UK · GBLister Hospital · GBPapworth Hospital · GBRoyal Brompton Hospital · GB

Funding

Department of Health
6 · The paper itself

Abstract

purposeNoninvasive markers of disease activity in patients with idiopathic pulmonary fibrosis (IPF) are lacking. We performed this study to investigate the reproducibility of pulmonary (18)F-FDG PET/CT in patients with IPF.

methodsThe study group comprised 13 patients (11 men, 2 women; mean age 71.1 ± 9.9 years) with IPF recruited for two thoracic (18)F-FDG PET/CT studies performed within 2 weeks of each other. All patients were diagnosed with IPF in consensus at multidisciplinary meetings as a result of typical clinical, high-resolution CT and pulmonary function test features. Three methods for evaluating pulmonary (18)F-FDG uptake were used. The maximal (18)F-FDG pulmonary uptake (SUVmax) in the lungs was determined using manual region-of-interest placement. An (18)F-FDG uptake intensity histogram was automatically constructed from segmented lungs to evaluate the distribution of SUVs. Finally, mean SUV was determined for volumes-of-interest in pulmonary regions with interstitial lung changes identified on CT scans. Processing included correction for tissue fraction effects. Bland-Altman analysis was performed and interclass correlation coefficients (ICC) were determined to assess the reproducibility between the first and second PET scans, as well as the level of intraobserver and interobserver agreement.

resultsThe mean time between the two scans was 6.3 ± 4.3 days. The interscan ICCs for pulmonary SUVmax analysis and mean SUV corrected for tissue fraction effects were 0.90 and 0.91, respectively. Intensity histograms were different in only 1 of the 13 paired studies. Intraobserver agreement was also excellent (0.80 and 0.85, respectively). Some bias was observed between observers, suggesting that serial studies would benefit from analysis by the same observer.

conclusionThis study demonstrated that there is excellent short-term reproducibility in pulmonary (18)F-FDG uptake in patients with IPF.

Indexed as

Fluorodeoxyglucose F18Positron-Emission TomographyTomography, X-Ray ComputedAgedFemaleHumansIdiopathic Pulmonary FibrosisLungMaleMultimodal ImagingReproducibility of ResultsTime FactorsFluorodeoxyglucose F18

Identifiers

PMID22258710
OpenAlexW2010874791

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.