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A multi institutional comparison of imaging dose and technique protocols for neonatal chest radiography

2020-05Journal article Restricted access
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dc.contributor.authorGunn, C.
dc.contributor.authorO'Brien, K.
dc.contributor.authorFosså, K.
dc.contributor.authorTonkopi, E.
dc.contributor.authorLança, Luís
dc.contributor.authorMartins, Cláudia Teles
dc.contributor.authorMuller, H.
dc.contributor.authorFriedrich-Nel, H.
dc.contributor.authorAbdolell, M.
dc.contributor.authorJohansen, S.
dc.date.accessioned2019-12-23T16:46:05Z
dc.date.available2019-12-23T16:46:05Z
dc.date.issued2020-05
dc.description.abstractIntroduction: The focus on pediatric radiation dose reduction supports the re-evaluation of pediatric imaging protocols. This is particularly important in neonates where chest radiographs are frequently requested to assess respiratory illness and line placement. This study aims to assess the impact of neonatal chest radiographic protocols on patient dose in four hospitals in different countries. Methods: Exposure parameters, collimation, focus to skin distance (FSD) and radiation dose from 200 neonatal chest radiographs were registered prospectively. Inclusion criteria consisted of both premature and full-term neonates weighing between 1000 and 5000 g. Only data from the examinations meeting diagnostic criteria and approved for the clinical use were included. The radiation dose was assessed using a dose area product (DAP). Results: The lowest DAP value (4.58 mGy cm2) was recorded in the Norwegian hospital, employing a high kVp, low mAs protocol using a DR system. The Canadian hospital recorded the highest DAP (9.48), using lower kVp and higher mAs with a CR system, including the addition of a lateral projection. The difference in the mean DAP, weight, the field of view (FOV) and kVp between the hospitals is statistically significant (p<0.001). Conclusion: The use of non-standardized imaging protocols in neonatal chest radiography results in differences in patient dose across hospitals included in the study. Using higher kVp, lower mAs and reducing the number of lateral projections to clinically relevant indications result in a lower DAP measured in the infant sample studied. Further studies to examine image quality based on exposure factors and added filtration are recommended. Implications for practice: Reevaluation of pediatric imaging protocols presents an opportunity to reduce patient dose in a population with increased sensitivity to ionizing radiation.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationGunn C, O'Brien K, Fosså K, Tonkopi E, Lança L, Martins CT, et al. A multi institutional comparison of imaging dose and technique protocols for neonatal chest radiography. Radiography. 2020;26(2):e66-e72.pt_PT
dc.identifier.doi10.1016/j.radi.2019.10.013pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.21/10921
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S1078817419301622?via%3Dihubpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectRadiologypt_PT
dc.subjectChest x-raypt_PT
dc.subjectPaediatric imagingpt_PT
dc.subjectExposure parameterspt_PT
dc.titleA multi institutional comparison of imaging dose and technique protocols for neonatal chest radiographypt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPagee72pt_PT
oaire.citation.issue2pt_PT
oaire.citation.startPagee66pt_PT
oaire.citation.titleRadiographypt_PT
oaire.citation.volume26pt_PT
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT

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