Monte Carlo derivation of filtered tungsten anode X-ray spectra for dose computation in digital mammography

Detalhes bibliográficos
Autor(a) principal: Paixão,Lucas
Data de Publicação: 2015
Outros Autores: Oliveira,Bruno Beraldo, Viloria,Carolina, Oliveira,Marcio Alves de, Teixeira,Maria Helena Araújo, Nogueira,Maria do Socorro
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Radiologia Brasileira (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-39842015000600006
Resumo: Abstract Objective: Derive filtered tungsten X-ray spectra used in digital mammography systems by means of Monte Carlo simulations. Materials and Methods: Filtered spectra for rhodium filter were obtained for tube potentials between 26 and 32 kV. The half-value layer (HVL) of simulated filtered spectra were compared with those obtained experimentally with a solid state detector Unfors model 8202031-H Xi R/F & MAM Detector Platinum and 8201023-C Xi Base unit Platinum Plus w mAs in a Hologic Selenia Dimensions system using a direct radiography mode. Results: Calculated HVL values showed good agreement as compared with those obtained experimentally. The greatest relative difference between the Monte Carlo calculated HVL values and experimental HVL values was 4%. Conclusion: The results show that the filtered tungsten anode X-ray spectra and the EGSnrc Monte Carlo code can be used for mean glandular dose determination in mammography.
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spelling Monte Carlo derivation of filtered tungsten anode X-ray spectra for dose computation in digital mammographyMammographyX-ray spectraHVLMonte CarloAbstract Objective: Derive filtered tungsten X-ray spectra used in digital mammography systems by means of Monte Carlo simulations. Materials and Methods: Filtered spectra for rhodium filter were obtained for tube potentials between 26 and 32 kV. The half-value layer (HVL) of simulated filtered spectra were compared with those obtained experimentally with a solid state detector Unfors model 8202031-H Xi R/F & MAM Detector Platinum and 8201023-C Xi Base unit Platinum Plus w mAs in a Hologic Selenia Dimensions system using a direct radiography mode. Results: Calculated HVL values showed good agreement as compared with those obtained experimentally. The greatest relative difference between the Monte Carlo calculated HVL values and experimental HVL values was 4%. Conclusion: The results show that the filtered tungsten anode X-ray spectra and the EGSnrc Monte Carlo code can be used for mean glandular dose determination in mammography.Publicação do Colégio Brasileiro de Radiologia e Diagnóstico por Imagem2015-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-39842015000600006Radiologia Brasileira v.48 n.6 2015reponame:Radiologia Brasileira (Online)instname:Colégio Brasileiro de Radiologia e Diagnóstico por Imagem (CBR)instacron:CBR10.1590/0100-3984.2014.0108info:eu-repo/semantics/openAccessPaixão,LucasOliveira,Bruno BeraldoViloria,CarolinaOliveira,Marcio Alves deTeixeira,Maria Helena AraújoNogueira,Maria do Socorroeng2016-01-22T00:00:00Zoai:scielo:S0100-39842015000600006Revistahttps://www.scielo.br/j/rb/https://old.scielo.br/oai/scielo-oai.phpradiologiabrasileira@cbr.org.br1678-70990100-3984opendoar:2016-01-22T00:00Radiologia Brasileira (Online) - Colégio Brasileiro de Radiologia e Diagnóstico por Imagem (CBR)false
dc.title.none.fl_str_mv Monte Carlo derivation of filtered tungsten anode X-ray spectra for dose computation in digital mammography
title Monte Carlo derivation of filtered tungsten anode X-ray spectra for dose computation in digital mammography
spellingShingle Monte Carlo derivation of filtered tungsten anode X-ray spectra for dose computation in digital mammography
Paixão,Lucas
Mammography
X-ray spectra
HVL
Monte Carlo
title_short Monte Carlo derivation of filtered tungsten anode X-ray spectra for dose computation in digital mammography
title_full Monte Carlo derivation of filtered tungsten anode X-ray spectra for dose computation in digital mammography
title_fullStr Monte Carlo derivation of filtered tungsten anode X-ray spectra for dose computation in digital mammography
title_full_unstemmed Monte Carlo derivation of filtered tungsten anode X-ray spectra for dose computation in digital mammography
title_sort Monte Carlo derivation of filtered tungsten anode X-ray spectra for dose computation in digital mammography
author Paixão,Lucas
author_facet Paixão,Lucas
Oliveira,Bruno Beraldo
Viloria,Carolina
Oliveira,Marcio Alves de
Teixeira,Maria Helena Araújo
Nogueira,Maria do Socorro
author_role author
author2 Oliveira,Bruno Beraldo
Viloria,Carolina
Oliveira,Marcio Alves de
Teixeira,Maria Helena Araújo
Nogueira,Maria do Socorro
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Paixão,Lucas
Oliveira,Bruno Beraldo
Viloria,Carolina
Oliveira,Marcio Alves de
Teixeira,Maria Helena Araújo
Nogueira,Maria do Socorro
dc.subject.por.fl_str_mv Mammography
X-ray spectra
HVL
Monte Carlo
topic Mammography
X-ray spectra
HVL
Monte Carlo
description Abstract Objective: Derive filtered tungsten X-ray spectra used in digital mammography systems by means of Monte Carlo simulations. Materials and Methods: Filtered spectra for rhodium filter were obtained for tube potentials between 26 and 32 kV. The half-value layer (HVL) of simulated filtered spectra were compared with those obtained experimentally with a solid state detector Unfors model 8202031-H Xi R/F & MAM Detector Platinum and 8201023-C Xi Base unit Platinum Plus w mAs in a Hologic Selenia Dimensions system using a direct radiography mode. Results: Calculated HVL values showed good agreement as compared with those obtained experimentally. The greatest relative difference between the Monte Carlo calculated HVL values and experimental HVL values was 4%. Conclusion: The results show that the filtered tungsten anode X-ray spectra and the EGSnrc Monte Carlo code can be used for mean glandular dose determination in mammography.
publishDate 2015
dc.date.none.fl_str_mv 2015-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-39842015000600006
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-39842015000600006
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0100-3984.2014.0108
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Publicação do Colégio Brasileiro de Radiologia e Diagnóstico por Imagem
publisher.none.fl_str_mv Publicação do Colégio Brasileiro de Radiologia e Diagnóstico por Imagem
dc.source.none.fl_str_mv Radiologia Brasileira v.48 n.6 2015
reponame:Radiologia Brasileira (Online)
instname:Colégio Brasileiro de Radiologia e Diagnóstico por Imagem (CBR)
instacron:CBR
instname_str Colégio Brasileiro de Radiologia e Diagnóstico por Imagem (CBR)
instacron_str CBR
institution CBR
reponame_str Radiologia Brasileira (Online)
collection Radiologia Brasileira (Online)
repository.name.fl_str_mv Radiologia Brasileira (Online) - Colégio Brasileiro de Radiologia e Diagnóstico por Imagem (CBR)
repository.mail.fl_str_mv radiologiabrasileira@cbr.org.br
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