Optimized T1- and T2-weighted volumetric brain imaging as a diagnostic tool in very preterm neonates.
Autor(a) principal: | |
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Data de Publicação: | 2011 |
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/10400.23/551 |
Resumo: | BACKGROUND: T1- and T2-W MR sequences used for obtaining diagnostic information and morphometric measurements in the neonatal brain are frequently acquired using different imaging protocols. Optimizing one protocol for obtaining both kinds of information is valuable. OBJECTIVE: To determine whether high-resolution T1- and T2-W volumetric sequences optimized for preterm brain imaging could provide both diagnostic and morphometric value. MATERIALS AND METHODS: Thirty preterm neonates born between 24 and 32 weeks' gestational age were scanned during the first 2 weeks after birth. T1- and T2-W high-resolution sequences were optimized in terms of signal-to-noise ratio, contrast-to-noise ratio and scan time and compared to conventional spin-echo-based sequences. RESULTS: No differences were found between conventional and high-resolution T1-W sequences for diagnostic confidence, image quality and motion artifacts. A preference for conventional over high-resolution T2-W sequences for image quality was observed. High-resolution T1 images provided better delineation of thalamic myelination and the superior temporal sulcus. No differences were found for detection of myelination and sulcation using conventional and high-resolution T2-W images. CONCLUSION: High-resolution T1- and T2-W volumetric sequences can be used in clinical MRI in the very preterm brain to provide both diagnostic and morphometric information. |
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Optimized T1- and T2-weighted volumetric brain imaging as a diagnostic tool in very preterm neonates.CérebroAumento da ImagemImagem TridimensionalRessonância MagnéticaPrematuroBACKGROUND: T1- and T2-W MR sequences used for obtaining diagnostic information and morphometric measurements in the neonatal brain are frequently acquired using different imaging protocols. Optimizing one protocol for obtaining both kinds of information is valuable. OBJECTIVE: To determine whether high-resolution T1- and T2-W volumetric sequences optimized for preterm brain imaging could provide both diagnostic and morphometric value. MATERIALS AND METHODS: Thirty preterm neonates born between 24 and 32 weeks' gestational age were scanned during the first 2 weeks after birth. T1- and T2-W high-resolution sequences were optimized in terms of signal-to-noise ratio, contrast-to-noise ratio and scan time and compared to conventional spin-echo-based sequences. RESULTS: No differences were found between conventional and high-resolution T1-W sequences for diagnostic confidence, image quality and motion artifacts. A preference for conventional over high-resolution T2-W sequences for image quality was observed. High-resolution T1 images provided better delineation of thalamic myelination and the superior temporal sulcus. No differences were found for detection of myelination and sulcation using conventional and high-resolution T2-W images. CONCLUSION: High-resolution T1- and T2-W volumetric sequences can be used in clinical MRI in the very preterm brain to provide both diagnostic and morphometric information.SpingerRepositório Científico do Hospital de BragaNossin-Manor, RChung, ADMorris, DSoares-Fernandes, JPThomas, BCheng, HLWhyte, HETaylor, MJSled, JGShroff, MM2013-11-15T15:53:14Z2011-01-01T00:00:00Z2011-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.23/551engPediatr Radiol. 2011;41(6):702-10.info: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:RCAAP2022-09-21T09:02:14Zoai:repositorio.hospitaldebraga.pt:10400.23/551Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:55:12.208600Repositório 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 |
Optimized T1- and T2-weighted volumetric brain imaging as a diagnostic tool in very preterm neonates. |
title |
Optimized T1- and T2-weighted volumetric brain imaging as a diagnostic tool in very preterm neonates. |
spellingShingle |
Optimized T1- and T2-weighted volumetric brain imaging as a diagnostic tool in very preterm neonates. Nossin-Manor, R Cérebro Aumento da Imagem Imagem Tridimensional Ressonância Magnética Prematuro |
title_short |
Optimized T1- and T2-weighted volumetric brain imaging as a diagnostic tool in very preterm neonates. |
title_full |
Optimized T1- and T2-weighted volumetric brain imaging as a diagnostic tool in very preterm neonates. |
title_fullStr |
Optimized T1- and T2-weighted volumetric brain imaging as a diagnostic tool in very preterm neonates. |
title_full_unstemmed |
Optimized T1- and T2-weighted volumetric brain imaging as a diagnostic tool in very preterm neonates. |
title_sort |
Optimized T1- and T2-weighted volumetric brain imaging as a diagnostic tool in very preterm neonates. |
author |
Nossin-Manor, R |
author_facet |
Nossin-Manor, R Chung, AD Morris, D Soares-Fernandes, JP Thomas, B Cheng, HL Whyte, HE Taylor, MJ Sled, JG Shroff, MM |
author_role |
author |
author2 |
Chung, AD Morris, D Soares-Fernandes, JP Thomas, B Cheng, HL Whyte, HE Taylor, MJ Sled, JG Shroff, MM |
author2_role |
author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Repositório Científico do Hospital de Braga |
dc.contributor.author.fl_str_mv |
Nossin-Manor, R Chung, AD Morris, D Soares-Fernandes, JP Thomas, B Cheng, HL Whyte, HE Taylor, MJ Sled, JG Shroff, MM |
dc.subject.por.fl_str_mv |
Cérebro Aumento da Imagem Imagem Tridimensional Ressonância Magnética Prematuro |
topic |
Cérebro Aumento da Imagem Imagem Tridimensional Ressonância Magnética Prematuro |
description |
BACKGROUND: T1- and T2-W MR sequences used for obtaining diagnostic information and morphometric measurements in the neonatal brain are frequently acquired using different imaging protocols. Optimizing one protocol for obtaining both kinds of information is valuable. OBJECTIVE: To determine whether high-resolution T1- and T2-W volumetric sequences optimized for preterm brain imaging could provide both diagnostic and morphometric value. MATERIALS AND METHODS: Thirty preterm neonates born between 24 and 32 weeks' gestational age were scanned during the first 2 weeks after birth. T1- and T2-W high-resolution sequences were optimized in terms of signal-to-noise ratio, contrast-to-noise ratio and scan time and compared to conventional spin-echo-based sequences. RESULTS: No differences were found between conventional and high-resolution T1-W sequences for diagnostic confidence, image quality and motion artifacts. A preference for conventional over high-resolution T2-W sequences for image quality was observed. High-resolution T1 images provided better delineation of thalamic myelination and the superior temporal sulcus. No differences were found for detection of myelination and sulcation using conventional and high-resolution T2-W images. CONCLUSION: High-resolution T1- and T2-W volumetric sequences can be used in clinical MRI in the very preterm brain to provide both diagnostic and morphometric information. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-01-01T00:00:00Z 2011-01-01T00:00:00Z 2013-11-15T15:53:14Z |
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/10400.23/551 |
url |
http://hdl.handle.net/10400.23/551 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Pediatr Radiol. 2011;41(6):702-10. |
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 |
Spinger |
publisher.none.fl_str_mv |
Spinger |
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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1799130419456638976 |