The impact of pediatric-specific dose modulation curves on radiation dose and image quality in head computed tomography
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.26/18185 |
Resumo: | The volume of CT examinations has increased with resultant increases in collective dose values over the last decade.Objective: To analyze the impact of the tube current and voltage modulation for dose values and image quality of pediatric head CT examinations. Materials and methods: Head CT examinations were performed on anthropomorphic phantoms and four pediatric age categories before and after the introduction of dedicated pediatric curves for tube voltage and current modulation. Local diagnostic reference levels were calculated. Visual grading characteristic image quality evaluation was performed by four pediatric neuroradiologists and image noise comparisons were performed. Results: Pediatric-specific modulation curves demonstrated a 49% decrease in mean radiation dose for phantom examinations. The local diagnostic reference levels (CTDIvol) for clinical examinations decreased by 52%, 41%, 46% and 40% for newborn, 5-, 10- and 15-year-old patients, respectively. Visual grading characteristic image quality was maintained for the majority of age categorizations (area under the curve = 0.5) and image noise measurements did not change (P = 0.693). Conclusion: Pediatric-specific dose modulation curves resulted in an overall mean dose reduction of 45% with no significant differences in subjective or objective image quality findings. |
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The impact of pediatric-specific dose modulation curves on radiation dose and image quality in head computed tomographyAdolescentChildPreschool ChildHeadHumansInfantNewborn InfantComputer-Assisted Radiographic Image InterpretationX-Ray Computed TomographyPhantoms, ImagingRadiation DosageThe volume of CT examinations has increased with resultant increases in collective dose values over the last decade.Objective: To analyze the impact of the tube current and voltage modulation for dose values and image quality of pediatric head CT examinations. Materials and methods: Head CT examinations were performed on anthropomorphic phantoms and four pediatric age categories before and after the introduction of dedicated pediatric curves for tube voltage and current modulation. Local diagnostic reference levels were calculated. Visual grading characteristic image quality evaluation was performed by four pediatric neuroradiologists and image noise comparisons were performed. Results: Pediatric-specific modulation curves demonstrated a 49% decrease in mean radiation dose for phantom examinations. The local diagnostic reference levels (CTDIvol) for clinical examinations decreased by 52%, 41%, 46% and 40% for newborn, 5-, 10- and 15-year-old patients, respectively. Visual grading characteristic image quality was maintained for the majority of age categorizations (area under the curve = 0.5) and image noise measurements did not change (P = 0.693). Conclusion: Pediatric-specific dose modulation curves resulted in an overall mean dose reduction of 45% with no significant differences in subjective or objective image quality findings.Springer VerlagRepositório ComumSantos, JoanaFoley, ShanePaulo, GracianoMcEntee, Mark F.Rainford, Louise2017-04-13T09:38:10Z2015-01-01T00:00:00Z2015-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.26/18185eng10.1007/s00247-015-3398-5info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-09-05T15:39:54Zoai:comum.rcaap.pt:10400.26/18185Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:15:45.150714Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
The impact of pediatric-specific dose modulation curves on radiation dose and image quality in head computed tomography |
title |
The impact of pediatric-specific dose modulation curves on radiation dose and image quality in head computed tomography |
spellingShingle |
The impact of pediatric-specific dose modulation curves on radiation dose and image quality in head computed tomography Santos, Joana Adolescent Child Preschool Child Head Humans Infant Newborn Infant Computer-Assisted Radiographic Image Interpretation X-Ray Computed Tomography Phantoms, Imaging Radiation Dosage |
title_short |
The impact of pediatric-specific dose modulation curves on radiation dose and image quality in head computed tomography |
title_full |
The impact of pediatric-specific dose modulation curves on radiation dose and image quality in head computed tomography |
title_fullStr |
The impact of pediatric-specific dose modulation curves on radiation dose and image quality in head computed tomography |
title_full_unstemmed |
The impact of pediatric-specific dose modulation curves on radiation dose and image quality in head computed tomography |
title_sort |
The impact of pediatric-specific dose modulation curves on radiation dose and image quality in head computed tomography |
author |
Santos, Joana |
author_facet |
Santos, Joana Foley, Shane Paulo, Graciano McEntee, Mark F. Rainford, Louise |
author_role |
author |
author2 |
Foley, Shane Paulo, Graciano McEntee, Mark F. Rainford, Louise |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Repositório Comum |
dc.contributor.author.fl_str_mv |
Santos, Joana Foley, Shane Paulo, Graciano McEntee, Mark F. Rainford, Louise |
dc.subject.por.fl_str_mv |
Adolescent Child Preschool Child Head Humans Infant Newborn Infant Computer-Assisted Radiographic Image Interpretation X-Ray Computed Tomography Phantoms, Imaging Radiation Dosage |
topic |
Adolescent Child Preschool Child Head Humans Infant Newborn Infant Computer-Assisted Radiographic Image Interpretation X-Ray Computed Tomography Phantoms, Imaging Radiation Dosage |
description |
The volume of CT examinations has increased with resultant increases in collective dose values over the last decade.Objective: To analyze the impact of the tube current and voltage modulation for dose values and image quality of pediatric head CT examinations. Materials and methods: Head CT examinations were performed on anthropomorphic phantoms and four pediatric age categories before and after the introduction of dedicated pediatric curves for tube voltage and current modulation. Local diagnostic reference levels were calculated. Visual grading characteristic image quality evaluation was performed by four pediatric neuroradiologists and image noise comparisons were performed. Results: Pediatric-specific modulation curves demonstrated a 49% decrease in mean radiation dose for phantom examinations. The local diagnostic reference levels (CTDIvol) for clinical examinations decreased by 52%, 41%, 46% and 40% for newborn, 5-, 10- and 15-year-old patients, respectively. Visual grading characteristic image quality was maintained for the majority of age categorizations (area under the curve = 0.5) and image noise measurements did not change (P = 0.693). Conclusion: Pediatric-specific dose modulation curves resulted in an overall mean dose reduction of 45% with no significant differences in subjective or objective image quality findings. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-01-01T00:00:00Z 2015-01-01T00:00:00Z 2017-04-13T09:38:10Z |
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://hdl.handle.net/10400.26/18185 |
url |
http://hdl.handle.net/10400.26/18185 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1007/s00247-015-3398-5 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Springer Verlag |
publisher.none.fl_str_mv |
Springer Verlag |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799130021781045248 |