Mri of Pregnant Patients for Suspected Pulmonary Embolism: Steady-State Free Precession vs Postgadolinium 3D-GRE
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://www.actamedicaportuguesa.com/revista/index.php/amp/article/view/1352 |
Resumo: | Introduction: Pulmonary embolism is a leading cause of maternal mortality in the developed world. Ventilation-perfusion scintigraphyand Computer tomography cause ionizing radiation exposure. Gadolinium-enhanced magnetic resonance imaging is generally notindicated in pregnant patients. MRI using motion resistant techniques that do not use intravenous contrast material, such as balancedsteady-state free precession may be a better approach in pregnant patients.Purpose: To describe the preliminary findings of the use of SSFP for the evaluation of pregnant patients with suspected PE, and tocompare with a young women population evaluated with postgadolinium 3D-gradient echo sequences for the same intention.Materials and Methods: Radiology database was searched for two groups of subjects who underwent chest MRI at 1.5T for suspectedPE, between January, 2007 and June, 2010: pregnant patients with MRI including balanced SSFP (group A) and females younger than45 years old including a T1-weighted postgadolinium 3D-GRE (group B) sequence. The final study population consisted of 21 subjects.Blind and independent evaluation of MR images was performed for image quality of the pulmonary arterial system, PE and other chestfindings. Data was subject to statistical analysis.Results: Good image quality was observed in all central and lobar arteries on both groups and in 90% (group A) and at least 83.3%(group B) of the segmental arteries. There was no significant difference between groups A and B for image quality of central and lobarpulmonary arteries (p > 0.05).Conclusion: SSFP can visualize central, lobar and segmental pulmonary arteries with sufficient image quality in pregnant patients,comparable to 3D-GRE. |
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Mri of Pregnant Patients for Suspected Pulmonary Embolism: Steady-State Free Precession vs Postgadolinium 3D-GRERessonância Magnética em Doentes Grávidas com Suspeita de Embolia Pulmonar: Steady-State Free Precession vs 3D-GRE Após GadolínioIntroduction: Pulmonary embolism is a leading cause of maternal mortality in the developed world. Ventilation-perfusion scintigraphyand Computer tomography cause ionizing radiation exposure. Gadolinium-enhanced magnetic resonance imaging is generally notindicated in pregnant patients. MRI using motion resistant techniques that do not use intravenous contrast material, such as balancedsteady-state free precession may be a better approach in pregnant patients.Purpose: To describe the preliminary findings of the use of SSFP for the evaluation of pregnant patients with suspected PE, and tocompare with a young women population evaluated with postgadolinium 3D-gradient echo sequences for the same intention.Materials and Methods: Radiology database was searched for two groups of subjects who underwent chest MRI at 1.5T for suspectedPE, between January, 2007 and June, 2010: pregnant patients with MRI including balanced SSFP (group A) and females younger than45 years old including a T1-weighted postgadolinium 3D-GRE (group B) sequence. The final study population consisted of 21 subjects.Blind and independent evaluation of MR images was performed for image quality of the pulmonary arterial system, PE and other chestfindings. Data was subject to statistical analysis.Results: Good image quality was observed in all central and lobar arteries on both groups and in 90% (group A) and at least 83.3%(group B) of the segmental arteries. There was no significant difference between groups A and B for image quality of central and lobarpulmonary arteries (p > 0.05).Conclusion: SSFP can visualize central, lobar and segmental pulmonary arteries with sufficient image quality in pregnant patients,comparable to 3D-GRE.Introdução: A embolia pulmonar é uma importante causa de mortalidade materna no mundo desenvolvido. A cintigrafia de ventilaçãoperfusãoe a tomografia computorizada causam exposição à radiação ionizante. A ressonância magnética com contraste-gadolínioendovenoso não é geralmente indicada em doentes grávidas. A RM utilizando técnicas resistentes aos artefactos de movimento, quenão usam contraste endovenoso, como a balanced steady-state free precession (SSFP) poderá ser uma abordagem preferível emdoentes grávidas.Objectivo: Descrever os achados preliminares do uso de SSFP na avaliação de doentes grávidas com suspeita de EP, comparandocom uma população de jovens mulheres avaliadas com RM 3D-gradiente eco após contraste-gadolínio pela mesma suspeita clínica.Materiais e Métodos: O arquivo radiológico foi retrospectivamente analisado para dois grupos de doentes submetidos a RM do tóraxem 1.5T por suspeita de EP, entre Janeiro de 2007 e Junho de 2010: grávidas com RM incluindo SSFP (grupo A) e mulheres comidade inferior a 45 anos com RM incluindo sequência ponderada em T1, 3D-GRE, após contraste-gadolínio (grupo B). A populaçãofinal incluiu 21 doentes. As imagens de RM foram avaliadas com leitura independente e cega, para qualidade de imagem do sistemaarterial pulmonar, EP e outros achados torácicos. Os dados foram submetidos a análise estatística.Resultados: A qualidade de imagem foi considerada boa em todas as artérias centrais e lobares de ambos os grupos e em pelo menos90% (grupo A) e 83,3% (grupo B) das artérias segmentares. Não ocorreram diferenças significativas na qualidade de imagem dasartérias pulmonares centrais e lobares entre os grupos A e B (p > 0,05).Conclusão: A RM com SSFP pode visualizar as artérias pulmonares centrais, lobares e segmentares em doentes grávidas, comqualidade de imagem adequada e comparável a 3D-GRE.Ordem dos Médicos2013-01-28info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://www.actamedicaportuguesa.com/revista/index.php/amp/article/view/1352oai:ojs.www.actamedicaportuguesa.com:article/1352Acta Médica Portuguesa; Vol. 25 No. 6 (2012): November-December; 359-367Acta Médica Portuguesa; Vol. 25 N.º 6 (2012): Novembro-Dezembro; 359-3671646-07580870-399Xreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPenghttps://www.actamedicaportuguesa.com/revista/index.php/amp/article/view/1352https://www.actamedicaportuguesa.com/revista/index.php/amp/article/view/1352/945Herédia, VascoAltun, ErsanRamalho, MiguelDe Campos, RafaelAzevedo, RafaelPamuklar, ErtanSemelka, Richard Cinfo:eu-repo/semantics/openAccess2022-12-20T10:57:46Zoai:ojs.www.actamedicaportuguesa.com:article/1352Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:17:05.042574Repositório 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 |
Mri of Pregnant Patients for Suspected Pulmonary Embolism: Steady-State Free Precession vs Postgadolinium 3D-GRE Ressonância Magnética em Doentes Grávidas com Suspeita de Embolia Pulmonar: Steady-State Free Precession vs 3D-GRE Após Gadolínio |
title |
Mri of Pregnant Patients for Suspected Pulmonary Embolism: Steady-State Free Precession vs Postgadolinium 3D-GRE |
spellingShingle |
Mri of Pregnant Patients for Suspected Pulmonary Embolism: Steady-State Free Precession vs Postgadolinium 3D-GRE Herédia, Vasco |
title_short |
Mri of Pregnant Patients for Suspected Pulmonary Embolism: Steady-State Free Precession vs Postgadolinium 3D-GRE |
title_full |
Mri of Pregnant Patients for Suspected Pulmonary Embolism: Steady-State Free Precession vs Postgadolinium 3D-GRE |
title_fullStr |
Mri of Pregnant Patients for Suspected Pulmonary Embolism: Steady-State Free Precession vs Postgadolinium 3D-GRE |
title_full_unstemmed |
Mri of Pregnant Patients for Suspected Pulmonary Embolism: Steady-State Free Precession vs Postgadolinium 3D-GRE |
title_sort |
Mri of Pregnant Patients for Suspected Pulmonary Embolism: Steady-State Free Precession vs Postgadolinium 3D-GRE |
author |
Herédia, Vasco |
author_facet |
Herédia, Vasco Altun, Ersan Ramalho, Miguel De Campos, Rafael Azevedo, Rafael Pamuklar, Ertan Semelka, Richard C |
author_role |
author |
author2 |
Altun, Ersan Ramalho, Miguel De Campos, Rafael Azevedo, Rafael Pamuklar, Ertan Semelka, Richard C |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Herédia, Vasco Altun, Ersan Ramalho, Miguel De Campos, Rafael Azevedo, Rafael Pamuklar, Ertan Semelka, Richard C |
description |
Introduction: Pulmonary embolism is a leading cause of maternal mortality in the developed world. Ventilation-perfusion scintigraphyand Computer tomography cause ionizing radiation exposure. Gadolinium-enhanced magnetic resonance imaging is generally notindicated in pregnant patients. MRI using motion resistant techniques that do not use intravenous contrast material, such as balancedsteady-state free precession may be a better approach in pregnant patients.Purpose: To describe the preliminary findings of the use of SSFP for the evaluation of pregnant patients with suspected PE, and tocompare with a young women population evaluated with postgadolinium 3D-gradient echo sequences for the same intention.Materials and Methods: Radiology database was searched for two groups of subjects who underwent chest MRI at 1.5T for suspectedPE, between January, 2007 and June, 2010: pregnant patients with MRI including balanced SSFP (group A) and females younger than45 years old including a T1-weighted postgadolinium 3D-GRE (group B) sequence. The final study population consisted of 21 subjects.Blind and independent evaluation of MR images was performed for image quality of the pulmonary arterial system, PE and other chestfindings. Data was subject to statistical analysis.Results: Good image quality was observed in all central and lobar arteries on both groups and in 90% (group A) and at least 83.3%(group B) of the segmental arteries. There was no significant difference between groups A and B for image quality of central and lobarpulmonary arteries (p > 0.05).Conclusion: SSFP can visualize central, lobar and segmental pulmonary arteries with sufficient image quality in pregnant patients,comparable to 3D-GRE. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-01-28 |
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 |
https://www.actamedicaportuguesa.com/revista/index.php/amp/article/view/1352 oai:ojs.www.actamedicaportuguesa.com:article/1352 |
url |
https://www.actamedicaportuguesa.com/revista/index.php/amp/article/view/1352 |
identifier_str_mv |
oai:ojs.www.actamedicaportuguesa.com:article/1352 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.actamedicaportuguesa.com/revista/index.php/amp/article/view/1352 https://www.actamedicaportuguesa.com/revista/index.php/amp/article/view/1352/945 |
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 |
Ordem dos Médicos |
publisher.none.fl_str_mv |
Ordem dos Médicos |
dc.source.none.fl_str_mv |
Acta Médica Portuguesa; Vol. 25 No. 6 (2012): November-December; 359-367 Acta Médica Portuguesa; Vol. 25 N.º 6 (2012): Novembro-Dezembro; 359-367 1646-0758 0870-399X reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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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) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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