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Establishment of local diagnostic reference levels for abdomen and chest radiographies in the region of Algarve, Portugal

2024-01Journal article Restricted access
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dc.contributor.authorArriaga, A.
dc.contributor.authorGonçalves, Cláudia
dc.contributor.authorTeles, P.
dc.contributor.authorSantos, Joana
dc.contributor.authorSimãozinho, Paula
dc.contributor.authorSousa-Santos, Patrick Emanuell Mesquita
dc.date.accessioned2024-02-07T09:26:05Z
dc.date.available2024-02-07T09:26:05Z
dc.date.issued2024-01
dc.description.abstractPurpose: To assess doses variabilities in the same abdomen and chest RX exams for adults, to check the need for dose harmonization. To calculate Diagnostic Reference Levels (DRL), mandatory in the European Union, for the Algarve district in Portugal. Our results can be a valuable reference for the Portuguese official determination of DRLs, still in progress.Method: We considered 4,936 abdomen and 41,320 chest radiographs of adults, covering 7 health centres and 35 radiographers in Algarve. Entrance skin dose (ESD) was calculated for each radiograph and the corresponding uncertainty estimated. Mean doses per centre and per technician, and their uncertainties, were calculated to access dose variabilities. DRLs, set at the 3rd quartile of the total ESD distribution, were determined for a standard patient and for intervals of body mass index (BMI) to study their correlation with patient anatomical variations. Standard quartile errors were estimated.Results: Our results suggest significant dispersion in applied ESDs among different centres and radiographers. Estimates of DRLs also show small fluctuations across years and an important dependence on BMI intervals. For a standard patient, they are 8.7 +/- 0.1 (abdomen) and 0.44 +/- 0.01 (chest), while the European DRLs are, respectively, 5.1 and 0.2 (all in mGy).Conclusions: Results suggest that there is room for dose optimization and harmonization with European DRLs, urging a national dose survey and the establishment of official national DRLs. Official DRLs in intervals of BMI would be quite beneficial, to avoid unnecessary dose exposures.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.ejrad.2023.111248pt_PT
dc.identifier.eissn1872-7727
dc.identifier.urihttp://hdl.handle.net/10400.1/20376
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.subjectRadiological protectionpt_PT
dc.subjectDiagnostic reference levelspt_PT
dc.subjectAbdomen and chest radiographspt_PT
dc.subjectEntrance skin dosept_PT
dc.subjectStandard patientpt_PT
dc.subjectBody mass indexpt_PT
dc.titleEstablishment of local diagnostic reference levels for abdomen and chest radiographies in the region of Algarve, Portugalpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage111248pt_PT
oaire.citation.titleEuropean Journal of Radiologypt_PT
oaire.citation.volume170pt_PT
person.familyNameSousa-Santos
person.givenNamePatrick Emanuell Mesquita
person.identifier.orcid0000-0002-7729-7303
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication1bf5f23b-b83b-4f72-bc34-7195f58b5731
relation.isAuthorOfPublication.latestForDiscovery1bf5f23b-b83b-4f72-bc34-7195f58b5731

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