ABDOMEN-PELVIS COMPUTED TOMOGRAPHY PROTOCOL OPTIMIZATION: AN IMAGE QUALITY and DOSE ASSESSMENT
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1093/rpd/ncy181 http://hdl.handle.net/11449/189505 |
Resumo: | Computed tomography (CT) has a high level of sensitivity and specificity for the diagnosis and follow-up of pathologies of the abdomen-pelvis region. Some features, such as automatic tube current modulation (ATCM), permits the acquisition of quality images with low radiation doses. This study evaluated the image quality and radiation dose of abdomen-pelvis CT protocols with ATCM technique. Were performed five CT protocols using 16-slice and 64-slice scanners, an anthropomorphic phantom for dosimetric measurements, an analytical phantom and retrospective examinations for image quality analysis. Were found significant reduction in effective dose. The highest absorbed doses were found in the stomach and spleen (56.1 and 47.2 mGy, respectively). Objective parameters as noise, low contrast and spatial resolution did not significantly differ between the protocols (p > 0.05). All protocols received the range of 'Optimum/Acceptable' in patient's image quality analysis. This methodology can be reproduced in any clinical routine to optimize CT protocols. |
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Repositório Institucional da UNESP |
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ABDOMEN-PELVIS COMPUTED TOMOGRAPHY PROTOCOL OPTIMIZATION: AN IMAGE QUALITY and DOSE ASSESSMENTComputed tomography (CT) has a high level of sensitivity and specificity for the diagnosis and follow-up of pathologies of the abdomen-pelvis region. Some features, such as automatic tube current modulation (ATCM), permits the acquisition of quality images with low radiation doses. This study evaluated the image quality and radiation dose of abdomen-pelvis CT protocols with ATCM technique. Were performed five CT protocols using 16-slice and 64-slice scanners, an anthropomorphic phantom for dosimetric measurements, an analytical phantom and retrospective examinations for image quality analysis. Were found significant reduction in effective dose. The highest absorbed doses were found in the stomach and spleen (56.1 and 47.2 mGy, respectively). Objective parameters as noise, low contrast and spatial resolution did not significantly differ between the protocols (p > 0.05). All protocols received the range of 'Optimum/Acceptable' in patient's image quality analysis. This methodology can be reproduced in any clinical routine to optimize CT protocols.São Paulo State University (UNESP) Instituto de Biociências de Botucatu Departamento de Física e BiofísicaSão Paulo State University (UNESP) Faculdade de Medicina de Botucatu Departamento de Doenças Tropicais e Diagnóstico Por ImagemSapra Landauer, Rua Cid Silva César, 600Universidade de São Paulo (USP) Faculdade de Filosofia Ciências e Letras de Ribeirão Preto Centro de Instrumentação Dosimetria e Radioproteção (CIDRA), Av. Bandeirantes, 3900 Bairro Monte AlegreSão Paulo State University (UNESP) Instituto de Biociências de Botucatu Departamento de Física e BiofísicaSão Paulo State University (UNESP) Faculdade de Medicina de Botucatu Departamento de Doenças Tropicais e Diagnóstico Por ImagemUniversidade Estadual Paulista (Unesp)Sapra LandauerUniversidade de São Paulo (USP)Pelegrino Bastos Maués, Nadine Helena [UNESP]Fattori Alves, Allan Felipe [UNESP]Menegatti Pavan, Ana Luiza [UNESP]Marrone Ribeiro, Sergio [UNESP]Yamashita, Seizo [UNESP]Petean Trindade, André [UNESP]Mascarenhas, Yvone MariaNicolucci, PatríciaRodrigues De Pina, Diana [UNESP]2019-10-06T16:42:50Z2019-10-06T16:42:50Z2019-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article66-72http://dx.doi.org/10.1093/rpd/ncy181Radiation Protection Dosimetry, v. 184, n. 1, p. 66-72, 2019.1742-34060144-8420http://hdl.handle.net/11449/18950510.1093/rpd/ncy1812-s2.0-85070648763Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRadiation Protection Dosimetryinfo:eu-repo/semantics/openAccess2024-08-15T15:23:26Zoai:repositorio.unesp.br:11449/189505Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-15T15:23:26Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
ABDOMEN-PELVIS COMPUTED TOMOGRAPHY PROTOCOL OPTIMIZATION: AN IMAGE QUALITY and DOSE ASSESSMENT |
title |
ABDOMEN-PELVIS COMPUTED TOMOGRAPHY PROTOCOL OPTIMIZATION: AN IMAGE QUALITY and DOSE ASSESSMENT |
spellingShingle |
ABDOMEN-PELVIS COMPUTED TOMOGRAPHY PROTOCOL OPTIMIZATION: AN IMAGE QUALITY and DOSE ASSESSMENT Pelegrino Bastos Maués, Nadine Helena [UNESP] |
title_short |
ABDOMEN-PELVIS COMPUTED TOMOGRAPHY PROTOCOL OPTIMIZATION: AN IMAGE QUALITY and DOSE ASSESSMENT |
title_full |
ABDOMEN-PELVIS COMPUTED TOMOGRAPHY PROTOCOL OPTIMIZATION: AN IMAGE QUALITY and DOSE ASSESSMENT |
title_fullStr |
ABDOMEN-PELVIS COMPUTED TOMOGRAPHY PROTOCOL OPTIMIZATION: AN IMAGE QUALITY and DOSE ASSESSMENT |
title_full_unstemmed |
ABDOMEN-PELVIS COMPUTED TOMOGRAPHY PROTOCOL OPTIMIZATION: AN IMAGE QUALITY and DOSE ASSESSMENT |
title_sort |
ABDOMEN-PELVIS COMPUTED TOMOGRAPHY PROTOCOL OPTIMIZATION: AN IMAGE QUALITY and DOSE ASSESSMENT |
author |
Pelegrino Bastos Maués, Nadine Helena [UNESP] |
author_facet |
Pelegrino Bastos Maués, Nadine Helena [UNESP] Fattori Alves, Allan Felipe [UNESP] Menegatti Pavan, Ana Luiza [UNESP] Marrone Ribeiro, Sergio [UNESP] Yamashita, Seizo [UNESP] Petean Trindade, André [UNESP] Mascarenhas, Yvone Maria Nicolucci, Patrícia Rodrigues De Pina, Diana [UNESP] |
author_role |
author |
author2 |
Fattori Alves, Allan Felipe [UNESP] Menegatti Pavan, Ana Luiza [UNESP] Marrone Ribeiro, Sergio [UNESP] Yamashita, Seizo [UNESP] Petean Trindade, André [UNESP] Mascarenhas, Yvone Maria Nicolucci, Patrícia Rodrigues De Pina, Diana [UNESP] |
author2_role |
author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Sapra Landauer Universidade de São Paulo (USP) |
dc.contributor.author.fl_str_mv |
Pelegrino Bastos Maués, Nadine Helena [UNESP] Fattori Alves, Allan Felipe [UNESP] Menegatti Pavan, Ana Luiza [UNESP] Marrone Ribeiro, Sergio [UNESP] Yamashita, Seizo [UNESP] Petean Trindade, André [UNESP] Mascarenhas, Yvone Maria Nicolucci, Patrícia Rodrigues De Pina, Diana [UNESP] |
description |
Computed tomography (CT) has a high level of sensitivity and specificity for the diagnosis and follow-up of pathologies of the abdomen-pelvis region. Some features, such as automatic tube current modulation (ATCM), permits the acquisition of quality images with low radiation doses. This study evaluated the image quality and radiation dose of abdomen-pelvis CT protocols with ATCM technique. Were performed five CT protocols using 16-slice and 64-slice scanners, an anthropomorphic phantom for dosimetric measurements, an analytical phantom and retrospective examinations for image quality analysis. Were found significant reduction in effective dose. The highest absorbed doses were found in the stomach and spleen (56.1 and 47.2 mGy, respectively). Objective parameters as noise, low contrast and spatial resolution did not significantly differ between the protocols (p > 0.05). All protocols received the range of 'Optimum/Acceptable' in patient's image quality analysis. This methodology can be reproduced in any clinical routine to optimize CT protocols. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-06T16:42:50Z 2019-10-06T16:42:50Z 2019-07-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1093/rpd/ncy181 Radiation Protection Dosimetry, v. 184, n. 1, p. 66-72, 2019. 1742-3406 0144-8420 http://hdl.handle.net/11449/189505 10.1093/rpd/ncy181 2-s2.0-85070648763 |
url |
http://dx.doi.org/10.1093/rpd/ncy181 http://hdl.handle.net/11449/189505 |
identifier_str_mv |
Radiation Protection Dosimetry, v. 184, n. 1, p. 66-72, 2019. 1742-3406 0144-8420 10.1093/rpd/ncy181 2-s2.0-85070648763 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Radiation Protection Dosimetry |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
66-72 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128200037892096 |