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Study of the scattered x-ray distributions around a mammography unit

2012-03-03Journal article Open access
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dc.contributor.authorLima, Patricia
dc.contributor.authorSousa, Patrick Emmanuel
dc.contributor.authorRodrigues, Sónia Isabel do Espírito Santo
dc.contributor.authorAbrantes, António
dc.contributor.authorSilva, Carlos
dc.contributor.authorRibeiro, Luís
dc.contributor.authorDe almeida, Rui
dc.contributor.authorAzevedo, Kevin
dc.date.accessioned2012-07-04T14:27:27Z
dc.date.available2012-07-04T14:27:27Z
dc.date.issued2012-03-03
dc.description.abstractPurpose: To measure the distribution of scattered radiation in a mammography unit for shielding design purposes. Methods and Materials: Measurements were carried out with an anthropomorphic phantom used to simulate a body from one adult patient. The dose rate for scattered radiation was recorded by placing a solid state sensor (Unfors Xi Survey Detector) every 10 degrees at 1 m distance from the FOV centre, in the axial and coronal planes of the breast. The scattered radiation distribution was treated as isodose curves, specifying the amount of radiation that will be delivered to a specific point in the room around the equipment (GE Senographe DMR). More than 50 exposures were made with a tube voltage of 30 kVp, anode-filter combination Mo/Mo and large focus. Results: In the axial plane, results show that the scattered radiation is absorbed up to 73% on the back of the anthropomorphic phantom, at the potter bucky plane height. In the coronal plane, the scattered radiation significantly increases with the angle due to backscattering effect. Assuming the direction of the incidence beam is 0 degree, results show that the scattered radiation is 86% higher at 160 degrees than at 90 degrees. Conclusion: The type of mammographic view and the patient´s body strongly influence the distribution of scattered x-ray radiation. These results can be used to improve the shielding design of a mammographic unit with less resources and less spending on shielding barriers.por
dc.identifier.doihttp://dx.doi.org/10.1007/s13244-012-0158-z
dc.identifier.otherAUT: KBA02318; RPA02320; AAB70071; LPR02149;
dc.identifier.urihttp://hdl.handle.net/10400.1/1393
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherEuropean Society of Radiologypor
dc.relation.ispartofseriesB;0584
dc.relation.publisherversionhttp://www.springerlink.com/content/748t0m5j188vk586/por
dc.titleStudy of the scattered x-ray distributions around a mammography unitpor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceViena, Austriapor
oaire.citation.endPage266por
oaire.citation.issue3, Supplement 1 (2012)por
oaire.citation.startPage266por
oaire.citation.titleInsights into Imaging: Education and Strategies in European radiologypor
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.ciencia-id3F12-ED24-173C
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.rightsopenAccesspor
rcaap.typearticlepor
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relation.isAuthorOfPublicatione7ff7891-8e5b-4849-89bd-0c6195bd1c72
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relation.isAuthorOfPublication.latestForDiscovery23612f60-6de2-4e1c-a410-949875005828

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