Evidence map›Paper›PMID 24647812›Full record

Trial reportIntensive care medicine2014

Low-dose chest computed tomography for quantitative and visual anatomical analysis in patients with acute respiratory distress syndrome.

Davide Chiumello, Thomas Langer, Vittoria Vecchi, Simone Luoni, Andrea Colombo, Matteo Brioni, Sara Froio, Irene Cigada, Silvia Coppola, Alessandro Protti and 2 more

Abstract readClinical Trial
PubMed Publisher
In one paragraph

Trial report in Intensive care medicine, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–field-weighted citation impact
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

19 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
  4. A patient-specific approach for quantitative and automatic analysis of computed tomography images in lung disease: Application to COVID-19 patients.Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB) · 2021
    Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Lung imaging: how to get better look inside the lung.Annals of translational medicine · 2017
    Review
  13. Current Concepts of ARDS: A Narrative Review.International journal of molecular sciences · 2016
    Review
  14. Article
  15. Severe hypoxemia: which strategy to choose.Critical care (London, England) · 2016
    Review
  16. Diagnostic workup for ARDS patients.Intensive care medicine · 2016
    Review
  17. Article
  18. Validation of computed tomography for measuring lung weight.Intensive care medicine experimental · 2014
    Article
  19. Year in review 2013: Critical Care--respirology.Critical care (London, England) · 2014
    Review
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

12 authors.

Davide ChiumelloDipartimento di Anestesia, Rianimazione (Intensiva e Subintensiva) e Terapia del Dolore, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Via F. Sforza 35, Milan, Italy, chiumello@libero.it.
Thomas Langer
Vittoria Vecchi
Simone Luoni
Andrea Colombo
Matteo Brioni
Sara Froio
Irene Cigada
Silvia Coppola
Alessandro Protti
Marco Lazzerini
Luciano Gattinoni

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeChest computed tomography (CT) is a fundamental tool for the characterization of acute respiratory distress syndrome (ARDS). Its frequent use is, however, hindered by the associated radiation exposure. The aim of the present study was to evaluate, in patients with ARDS, the accuracy of quantitative and visual anatomical lung analysis performed on low-dose CT. We hypothesized that low-dose CT would provide accurate quantitative and visual anatomical results.

methodsChest CT was performed in 45 ARDS patients in static conditions at set airway pressures of 45 and 15 or 45 and 5 cmH2O. During each pause, two consecutive scans were obtained at two different tube current-time products (mAs). In 24 patients 110 mAs was coupled with 60 mAs; in 21 patients 110 was coupled with 30 mAs. All other CT parameters were kept unaltered. Quantitative and visual anatomical results obtained at different mAs were compared via Bland-Altman analysis.

resultsGood agreements were observed between 110 and 60 mAs and between 110 and 30 mAs both for quantitative and visual anatomical results (all biases below 1.5%). Estimated mean effective dose at 110, 60, and 30 mAs corresponded to 5.3 ± 1.6, 2.8 ± 0.8, and 1.4 ± 0.3 mSv, respectively.

conclusionsIn patients with ARDS a reduction of mAs up to 30 (70 % effective dose reduction) can be achieved without significant effect on quantitative and visual anatomical results. Low-dose chest CT, with related quantitative and visual anatomical analysis, could be a valuable tool to characterize and potentially monitor lung disease in patients with ARDS.

Indexed as

Radiation DosageAgedFemaleHumansItalyLinear ModelsMaleProspective StudiesRadiography, ThoracicRespiratory Distress SyndromeTomography, X-Ray Computed

Identifiers

What OpenQuestion holds

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Registered trials

None linked

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.