Please use this identifier to cite or link to this item: http://www.repositorio.cdtn.br:8080/jspui/handle/123456789/1310
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dc.contributor.authorSilva, Sabrina Donato da-
dc.contributor.authorJoana, Geórgia Santos-
dc.contributor.authorOliveira, Bruno Beraldo-
dc.contributor.authorOliveira, Marcio Alves de-
dc.contributor.authorLeyton, Fernando-
dc.contributor.authorNogueira, Maria do Socorro-
dc.date.accessioned2018-02-23T14:00:40Z-
dc.date.available2018-02-23T14:00:40Z-
dc.date.issued2015-
dc.identifier.citationSilva, Sabrina Donato da. et al. Dosimetry andimagequalityindigitalmammographyfacilities in theStateofMinasGerais,Brazil. Radiation Physics and Chemistry, v.116, p.292-299, 2015.pt_BR
dc.identifier.issn0969-806Xpt_BR
dc.identifier.urihttp://www.repositorio.cdtn.br:8080/jspui/handle/123456789/1310-
dc.description.abstractAccordingtotheNationalRegisterofHealthCareFacilities(CNES),thereareapproximately477mam- mographysystemsoperatinginthestateofMinasGerais,Brazil,ofwhichanestimated200aredigital apparatus usingmainlycomputerizedradiography(CR)ordirectradiography(DR)systems.Mammo- graphyisirreplaceableinthediagnosisandearlydetectionofbreastcancer,theleadingcauseofcancer death amongwomenworldwide.Ahighstandardofimagequalityalongsidesmallerdosesandopti- mization ofproceduresareessentialifearlydetectionistooccur.Thisstudyaimedtodeterminedosi- metry andimagequalityin68mammographyservicesinMinasGeraisusingCRorDRsystems.Thedata of thisstudywerecollectedbetweentheyearsof2011and2013.Thecontrast-to-noiseratioprovedtobe a criticalpointintheimageproductionchainindigitalsystems,since90%ofserviceswerenotcompliant in thisregard,mainlyforlargerPMMAthicknesses(60and70mm). Regardingtheimagenoise,only31%ofthesewerecompliant.Theaverageglandulardosefoundisof concern, sincemorethanhalfoftheservicespresenteddosesaboveacceptablelimits.Therefore,despite the potentialbenefits ofusingCRandDRsystems,theemploymentofthistechnologyhastoberevised and optimizedtoachievebetterqualityimageandreduceradiationdoseasmuchaspossible.pt_BR
dc.format.extent292-299pt_BR
dc.language.isoen_USpt_BR
dc.rightsLpt_BR
dc.subjectMammary glandspt_BR
dc.subjectDosimetrypt_BR
dc.subjectQuality controlpt_BR
dc.titleDosimetry andimagequalityindigitalmammographyfacilities in theStateofMinasGerais,Brazilpt_BR
dc.typeArtigo Periódicopt_BR
dc.coverageIpt_BR
dc.creator.affiliationCentro de Desenvolvimento da Tecnologia Nuclear, CDTN, Belo Horizonte, MG, Brasilpt_BR
dc.creator.affiliationUniversidade Federal de Minas Gerais, UFMG, Belo Horizonte, MG, Brasilpt_BR
dc.creator.affiliationCentro de Desenvolvimento da Tecnologia Nuclear, CDTN, Belo Horizonte, MG, Brasilpt_BR
dc.creator.affiliationUniversidade Federal de Uberlândia, UFU, Uberlância, MGpt_BR
dc.creator.affiliationCentro de Desenvolvimento da Tecnologia Nuclear, CDTN, Belo Horizonte, MG, Brasilpt_BR
dc.creator.affiliationCentro de Desenvolvimento da Tecnologia Nuclear, CDTN, Belo Horizonte, MG, Brasilpt_BR
dc.identifier.vol116pt_BR
dc.title.journalRadiation Physics and Chemistrypt_BR
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