Activity and attenuation recovery from activity dataonly in emission computed tomography

Detalhes bibliográficos
Autor(a) principal: Pierro,Alvaro R. de
Data de Publicação: 2006
Outros Autores: Crepaldi,Fabiana
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Computational & Applied Mathematics
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-03022006000200006
Resumo: We describe the continuous and discrete mathematical models for Emission Computed Tomography (ECT) and the need for attenuation correction. Then we analyse the problem of retrieving the attenuation directly from the emission data, nonuniqueness and its consequences. We present the existing and new approaches for solving the problem. Methods are compared and illustrated by numerical simulations. The presentation focuses on Positron Emission Tomography, but we also discuss the extensions to Single Photon Emission Computed Tomography.
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spelling Activity and attenuation recovery from activity dataonly in emission computed tomographyAttenuated Radon Transformmaximum likelihoodemission tomographyWe describe the continuous and discrete mathematical models for Emission Computed Tomography (ECT) and the need for attenuation correction. Then we analyse the problem of retrieving the attenuation directly from the emission data, nonuniqueness and its consequences. We present the existing and new approaches for solving the problem. Methods are compared and illustrated by numerical simulations. The presentation focuses on Positron Emission Tomography, but we also discuss the extensions to Single Photon Emission Computed Tomography.Sociedade Brasileira de Matemática Aplicada e Computacional2006-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-03022006000200006Computational & Applied Mathematics v.25 n.2-3 2006reponame:Computational & Applied Mathematicsinstname:Sociedade Brasileira de Matemática Aplicada e Computacional (SBMAC)instacron:SBMAC10.1590/S0101-82052006000200006info:eu-repo/semantics/openAccessPierro,Alvaro R. deCrepaldi,Fabianaeng2007-03-19T00:00:00Zoai:scielo:S1807-03022006000200006Revistahttps://www.scielo.br/j/cam/ONGhttps://old.scielo.br/oai/scielo-oai.php||sbmac@sbmac.org.br1807-03022238-3603opendoar:2007-03-19T00:00Computational & Applied Mathematics - Sociedade Brasileira de Matemática Aplicada e Computacional (SBMAC)false
dc.title.none.fl_str_mv Activity and attenuation recovery from activity dataonly in emission computed tomography
title Activity and attenuation recovery from activity dataonly in emission computed tomography
spellingShingle Activity and attenuation recovery from activity dataonly in emission computed tomography
Pierro,Alvaro R. de
Attenuated Radon Transform
maximum likelihood
emission tomography
title_short Activity and attenuation recovery from activity dataonly in emission computed tomography
title_full Activity and attenuation recovery from activity dataonly in emission computed tomography
title_fullStr Activity and attenuation recovery from activity dataonly in emission computed tomography
title_full_unstemmed Activity and attenuation recovery from activity dataonly in emission computed tomography
title_sort Activity and attenuation recovery from activity dataonly in emission computed tomography
author Pierro,Alvaro R. de
author_facet Pierro,Alvaro R. de
Crepaldi,Fabiana
author_role author
author2 Crepaldi,Fabiana
author2_role author
dc.contributor.author.fl_str_mv Pierro,Alvaro R. de
Crepaldi,Fabiana
dc.subject.por.fl_str_mv Attenuated Radon Transform
maximum likelihood
emission tomography
topic Attenuated Radon Transform
maximum likelihood
emission tomography
description We describe the continuous and discrete mathematical models for Emission Computed Tomography (ECT) and the need for attenuation correction. Then we analyse the problem of retrieving the attenuation directly from the emission data, nonuniqueness and its consequences. We present the existing and new approaches for solving the problem. Methods are compared and illustrated by numerical simulations. The presentation focuses on Positron Emission Tomography, but we also discuss the extensions to Single Photon Emission Computed Tomography.
publishDate 2006
dc.date.none.fl_str_mv 2006-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-03022006000200006
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dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0101-82052006000200006
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 Sociedade Brasileira de Matemática Aplicada e Computacional
publisher.none.fl_str_mv Sociedade Brasileira de Matemática Aplicada e Computacional
dc.source.none.fl_str_mv Computational & Applied Mathematics v.25 n.2-3 2006
reponame:Computational & Applied Mathematics
instname:Sociedade Brasileira de Matemática Aplicada e Computacional (SBMAC)
instacron:SBMAC
instname_str Sociedade Brasileira de Matemática Aplicada e Computacional (SBMAC)
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reponame_str Computational & Applied Mathematics
collection Computational & Applied Mathematics
repository.name.fl_str_mv Computational & Applied Mathematics - Sociedade Brasileira de Matemática Aplicada e Computacional (SBMAC)
repository.mail.fl_str_mv ||sbmac@sbmac.org.br
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