Evidence map›Paper›PMID 30940872›Full record

Trial reportScientific reports2019

Halve the dose while maintaining image quality in paediatric Cone Beam CT.

Anne Caroline Oenning, Ruben Pauwels, Andreas Stratis, Karla De Faria Vasconcelos, Elisabeth Tijskens, Annelore De Grauwe, Dimitra research group, Reinhilde Jacobs, Benjamin Salmon

Erratum issuedAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 40 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 1 pooled it
–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

40 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Outcomes of different radioprotective precautions in children undergoing dental radiography: a systematic review.European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry · 2020
    Pooled it
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  8. Indications and technical parameters of cone beam computed tomography in paediatric dentistry at Alexandria and Cairo universities: a retrospective study.European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry · 2025
    Observational
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  20. Cone beam computed tomography (CBCT) referrals in paediatric patients: A 24-month retrospective study in two radiological centers in Campinas, Brazil.European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry · 2023
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors.

Anne Caroline OenningParis Descartes University - Sorbonne Paris Cité, EA 2496 - Orofacial Pathologies, Imaging and Biotherapies Lab, Montrouge, France and Dental Medicine Department - Bretonneau Hospital, HUPNVS, AP-HP, Paris, France.ORCID http://orcid.org/0000-0001-9731-8629
Ruben PauwelsDepartment of Mechanical Engineering, Catholic University of Leuven, Leuven, Belgium.ORCID http://orcid.org/0000-0002-9462-7546
Andreas StratisOMFS IMPATH research group, Department of Imaging and Pathology, Faculty of Medicine, University of Leuven and Oral & Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium.
Karla De Faria VasconcelosOMFS IMPATH research group, Department of Imaging and Pathology, Faculty of Medicine, University of Leuven and Oral & Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium.
Elisabeth TijskensOMFS IMPATH research group, Department of Imaging and Pathology, Faculty of Medicine, University of Leuven and Oral & Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium.
Annelore De GrauweOMFS IMPATH research group, Department of Imaging and Pathology, Faculty of Medicine, University of Leuven and Oral & Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium.ORCID http://orcid.org/0000-0001-5073-4561
Dimitra research group
Reinhilde JacobsOMFS IMPATH research group, Department of Imaging and Pathology, Faculty of Medicine, University of Leuven and Oral & Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium.ORCID http://orcid.org/0000-0002-3461-0363
Benjamin SalmonParis Descartes University - Sorbonne Paris Cité, EA 2496 - Orofacial Pathologies, Imaging and Biotherapies Lab, Montrouge, France and Dental Medicine Department - Bretonneau Hospital, HUPNVS, AP-HP, Paris, France.ORCID http://orcid.org/0000-0001-8739-2753

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cone beam CT (CBCT) for dentomaxillofacial paediatric assessment has been widely used despite the uncertainties of the risks of the low-dose radiation exposures. The aim of this work was to investigate the clinical performance of different CBCT acquisition protocols towards the optimization of paediatric exposures. Custom-made anthropomorphic phantoms were scanned using a CBCT unit in six protocols. CT slices were blinded, randomized and presented to three observers, who scored the image quality using a 4-point scale along with their level of confidence. Sharpness level was also measured using a test object containing an air/PMMA e,dge. The effective dose was calculated by means of a customized Monte Carlo (MC) framework using previously validated paediatric voxels models. The results have shown that the protocols set with smaller voxel size (180 µm), even when decreasing exposure parameters (kVp and mAs), showed high image quality scores and increased sharpness. The MC analysis showed a gradual decrease in effective dose when exposures parameters were reduced, with an emphasis on an average reduction of 45% for the protocol that combined 70 kVp, 16 mAs and 180 µm voxel size. In contrast, both "ultra-low dose" protocols that combined a larger voxel size (400 µm) with lower mAs (7.4 mAs) demonstrated the lowest scores with high levels of confidence unsuitable for an anatomical approach. In conclusion, a significant decrease in the effective dose can be achieved while maintaining the image quality required for paediatric CBCT.

Indexed as

ChildCone-Beam Computed TomographyHumansImage Interpretation, Computer-AssistedMaxillaMonte Carlo MethodPhantoms, ImagingRadiation DosageTooth

Identifiers

PMID30940872
PMCPMC6445070

What OpenQuestion holds

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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.