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Estudo da dose nos exames de tomografia computadorizada abdominal em um equipamento de 6 cortes

2012Journal article Open access
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dc.contributor.authorRodrigues, Sónia
dc.contributor.authorAbrantes, António
dc.contributor.authorRibeiro, Luís Pedro
dc.contributor.authorAlmeida, Rui
dc.date.accessioned2022-07-07T15:34:50Z
dc.date.available2022-07-07T15:34:50Z
dc.date.issued2012
dc.description.abstractObjective: To determine the effective dose in abdominal computed tomography imaging and to study the influence of patients’ characteristics on the received dose. Materials and Methods: Dose values measurements were performed with an ionization chamber on phantoms to check the agreement between dose values and those presented by the computed tomography apparatus, besides their compliance with the recommended reference dose levels. Later, values of dose received by physically able patients submitted to abdominal computed tomography (n = 100) were measured and correlated with their anthropometric characteristics. Finally, the dose to organs was simulated with the Monte Carlo method using the CT-Expo V 1.5 software, and the effect of automatic exposure control on such examinations. Results: The main characteristics directly influencing the dose include the patients’ body mass, abdominal perimeter and body mass index, whose correlation is linear and positive. Conclusion: The radiation dose received from abdominal CT scans depends on some patient’s characteristics, and it is important to adjust the acquisition parameters to their dimensions.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1590/S0100-39842012000600008pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.1/17928
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectComputed tomographypt_PT
dc.subjectDosimetrypt_PT
dc.subjectALARApt_PT
dc.subjectCTDIpt_PT
dc.subjectOptimizationpt_PT
dc.subjectBody mass indexpt_PT
dc.titleEstudo da dose nos exames de tomografia computadorizada abdominal em um equipamento de 6 cortespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage333pt_PT
oaire.citation.issue6pt_PT
oaire.citation.startPage326pt_PT
oaire.citation.titleRadiologia Brasileirapt_PT
oaire.citation.volume45pt_PT
person.familyNamedo Espírito Santo Rodrigues
person.familyNameCaldeira Lagem Abrantes
person.familyNameRibeiro
person.familyNameAlmeida
person.givenNameSónia Isabel
person.givenNameAntónio Fernando
person.givenNameLuís Pedro
person.givenNameRui
person.identifier2176242
person.identifier.ciencia-idF615-E60D-9A5C
person.identifier.ciencia-idE514-87C6-9772
person.identifier.ciencia-idC815-8A07-1950
person.identifier.ciencia-id0113-F406-B03C
person.identifier.orcid0000-0002-9431-1402
person.identifier.orcid0000-0002-7792-678X
person.identifier.orcid0000-0002-6967-0534
person.identifier.orcid0000-0001-7524-9669
person.identifier.ridA-6697-2016
person.identifier.scopus-author-id58401765500
person.identifier.scopus-author-id55556024200
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication8770601c-19ac-49c6-8c52-d1c7031ba6a9
relation.isAuthorOfPublicatione7ff7891-8e5b-4849-89bd-0c6195bd1c72
relation.isAuthorOfPublication34d8529e-10eb-468a-b4a4-f652d90be308
relation.isAuthorOfPublication61d38bec-7094-4511-9b37-d8d0ffb9586f
relation.isAuthorOfPublication.latestForDiscovery34d8529e-10eb-468a-b4a4-f652d90be308

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