Evidence map›Paper›PMID 30683962›Full record

ArticlePediatric radiology2019

Technique, pitfalls, quality, radiation dose and findings of dynamic 4-dimensional computed tomography for airway imaging in infants and children.

Savvas Andronikou, Mark Chopra, Simon Langton-Hewer, Pia Maier, Jon Green, Emma Norbury, Sarah Price, Mary Smail

Open access · hybridAbstract read
In one paragraph

Article in Pediatric radiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
3.3field-weighted citation impact, top 7% 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

11 citing papers in PubMed, 28 citations in OpenAlex.

  1. Article
  2. Vascular and Non-Vascular Intervention in the Pediatric Chest: An Update.Cardiovascular and interventional radiology · 2025
    Review
  3. Article
  4. Article
  5. Review
  6. Accuracy and Reliability of 4D-CT and Flexible Laryngoscopy in Upper Airway Evaluation in Robin Sequence.Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery · 2022
    Article
  7. Chest Imaging for Pulmonary TB-An Update.Pathogens (Basel, Switzerland) · 2022
    Review
  8. Review
  9. Article
  10. Review
  11. 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

8 authors at 3 institutions in 2 countries.

Savvas AndronikouDepartment of Paediatric Radiology, Bristol Royal Hospital for Children, University Hospitals Bristol NHS Foundation Trust, Bristol, UK. andronikos@email.chop.edu.ORCID http://orcid.org/0000-0002-1015-9790
Mark ChopraDepartment of Paediatric Radiology, Bristol Royal Hospital for Children, University Hospitals Bristol NHS Foundation Trust, Bristol, UK.
Simon Langton-HewerDepartment of Paediatric Pulmonology, Bristol Royal Hospital for Children, Bristol, UK.
Pia MaierDepartment of Pediatric Radiology, Section of Pulmonary Imaging, Children's Hospital of Philadelphia, 3NW 39, 3401 Civic Center Blvd., Philadelphia, PA, 19104, USA.
Jon GreenDepartment of Paediatric Radiology, Bristol Royal Hospital for Children, University Hospitals Bristol NHS Foundation Trust, Bristol, UK.
Emma NorburyDepartment of Paediatric Radiology, Bristol Royal Hospital for Children, University Hospitals Bristol NHS Foundation Trust, Bristol, UK.
Sarah PriceRadiation Science Services, Medical Physics & Bioengineering, University Hospitals Bristol NHS Foundation Trust, Bristol, UK.
Mary SmailRadiation Science Services, Medical Physics & Bioengineering, University Hospitals Bristol NHS Foundation Trust, Bristol, UK.
University Hospitals Bristol NHS Foundation Trust · GBChildren's Hospital of Philadelphia · USBristol Royal Hospital for Children · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This retrospective review of 33 children's dynamic 4-dimensional (4-D) computed tomography (CT) images of the airways, performed using volume scanning on a 320-detector array without anaesthesia (free-breathing) and 1.4-s continuous scanning, was undertaken to report technique, pitfalls, quality, radiation doses and findings. Tracheobronchomalacia (airway diameter collapse >28%) was recorded. Age-matched routine chest CT scans and bronchograms acted as benchmarks for comparing effective dose. Pitfalls included failure to administer intravenous contrast, pull back endotracheal tubes and/or remove nasogastric tubes. Twenty-two studies (67%) were diagnostic. Motion artefact was present in 16 (48%). Mean effective dose: dynamic 4-D CT 1.0 mSv; routine CT chest, 1.0 mSv, and bronchograms, 1.4 mSv. Dynamic 4-D CT showed tracheobronchomalacia in 20 patients (61%) and cardiovascular abnormalities in 12 (36%). Fourteen children (70%) with tracheobronchomalacia were managed successfully by optimising conservative management, 5 (25%) underwent surgical interventions and 1 (5%) died from the presenting disorder.

Indexed as

Radiation DosageArtifactsChildChild, PreschoolFemaleFour-Dimensional Computed TomographyHumansInfantMaleReproducibility of ResultsRespiratory-Gated Imaging TechniquesRetrospective StudiesSensitivity and SpecificityTracheobronchomalaciaAirwaysBronchusChildComputed tomographyRadiation doseTracheaTracheobronchomalacia

Identifiers

PMID30683962
PMCPMC6459803
OpenAlexW2914711856

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.