Computed tomography exam of the thorax of bitches with malignant mammary gland tumors: I - Technical exam determination

Detalhes bibliográficos
Autor(a) principal: Pinto, Ana Carolina Brandão de Campos Fonseca
Data de Publicação: 2006
Outros Autores: Iwasaki, Masao, Figueiredo, Cláudia, Cortopassi, Sílvia Renata Gaido, Sterman, Franklin de Almeida
Tipo de documento: Artigo
Idioma: por
Título da fonte: Brazilian Journal of Veterinary Research and Animal Science
Texto Completo: https://www.revistas.usp.br/bjvras/article/view/26523
Resumo: Given the importance of malignant mammary gland tumors in veterinary medicine clinics, new perspectives of diagnostic imaging in order to evaluate pacients that have this neoplasia, and the lack of information about it in literature, this research intended to analyse some technical aspects of the contrast computed tomography scanning. The scanning time, the choice of the axial slices thickness, quality of the mediastinal vases contrast and the window width and level were studied in order to have images that make possible the evaluation of lungs, mediastinum, and bones. This research was performed at the Diagnostic Imaging Service of the Veterinary School Hospital of the Faculdade de Medicina Veterinária e Zootecnia at the University of São Paulo in twenty, different breed and age, bitches with malignant mammary gland tumors that were examined at the Obstetric and Ginecology and Small Animal Surgery Services of the same hospital. The average time for the complete contrast computed tomography scanning of the thorax, with nearly 30 slices, was thirty minutes; the ventral recumbency with the cranial traction of thoracic limbs, and the administration of intravenously iodine contrast medium (2ml/kg) that was given; two thirds of the dose in bolus and the complement under continuing infusion presented to be appropriate for the thoracic contrast computed tomography scanning. The 10 milimeters thickness for animals weighting over 30 kilograms and 5 milimeters for animals weighting under 30 kilograms presented to be appropriate in order to reach an average of thirty slices; the window and level selections to obtain pulmonary, mediastinal and bone images presented appropriate to be evaluated starting from window width 1500 Hounsfield unit (HU) with level varyng from -550 e -650 for lungs, window width between 250 to 300 HU with level varyng from 0 e 50 for mediastinum and window width of 1500 with the level between 50 and 350 HU.
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spelling Computed tomography exam of the thorax of bitches with malignant mammary gland tumors: I - Technical exam determinationTomografia computadorizada do tórax de cadelas portadoras de neoplasias mamárias malignas: I - determinação da técnica do exameTomografia computadorizadaTécnicaCavidade torácicaCadelasComputed tomographyTechniqueThoracic cavityBitchesGiven the importance of malignant mammary gland tumors in veterinary medicine clinics, new perspectives of diagnostic imaging in order to evaluate pacients that have this neoplasia, and the lack of information about it in literature, this research intended to analyse some technical aspects of the contrast computed tomography scanning. The scanning time, the choice of the axial slices thickness, quality of the mediastinal vases contrast and the window width and level were studied in order to have images that make possible the evaluation of lungs, mediastinum, and bones. This research was performed at the Diagnostic Imaging Service of the Veterinary School Hospital of the Faculdade de Medicina Veterinária e Zootecnia at the University of São Paulo in twenty, different breed and age, bitches with malignant mammary gland tumors that were examined at the Obstetric and Ginecology and Small Animal Surgery Services of the same hospital. The average time for the complete contrast computed tomography scanning of the thorax, with nearly 30 slices, was thirty minutes; the ventral recumbency with the cranial traction of thoracic limbs, and the administration of intravenously iodine contrast medium (2ml/kg) that was given; two thirds of the dose in bolus and the complement under continuing infusion presented to be appropriate for the thoracic contrast computed tomography scanning. The 10 milimeters thickness for animals weighting over 30 kilograms and 5 milimeters for animals weighting under 30 kilograms presented to be appropriate in order to reach an average of thirty slices; the window and level selections to obtain pulmonary, mediastinal and bone images presented appropriate to be evaluated starting from window width 1500 Hounsfield unit (HU) with level varyng from -550 e -650 for lungs, window width between 250 to 300 HU with level varyng from 0 e 50 for mediastinum and window width of 1500 with the level between 50 and 350 HU.Visto a importância das neoplasias mamárias malignas na clínica médico-veterinária e as novas perspectivas do diagnóstico por imagem na avaliação de pacientes portadores dessas neoplasias, o presente trabalho visou analisar alguns aspectos técnicos relativos ao exame de tomografia computadorizada contrastada da cavidade torácica quais sejam, tempo de realização do exame, escolha da espessura dos cortes transversais, qualidade de contrastação dos vasos mediastinais, abertura de janela e nível para obtenção das imagens de pulmão, mediastino e arcabouço ósseo, tendo em vista a escassez de informações na literatura consultada. Para tanto, foram realizados exames de tomografia computadorizada contrastada da cavidade torácica de vinte fêmeas da espécie canina, de diferentes raças e idades, portadoras de neoplasias mamárias malignas encaminhadas ao Serviço de Diagnóstico por Imagem do Hospital Veterinário da Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo pelos Serviços de Obstetrícia e Ginecologia e de Cirurgia de Pequenos Animais da mesma instituição. Concluiu-se que, o tempo médio para realização da tomografia contrastada completa do tórax, com aproximadamente trinta cortes foi de 30 minutos; o posicionamento em decúbito esternal com os membros tracionados cranialmente, e a administração de contraste iodado hidrossolúvel por via intravenosa no volume aproximado de 2ml/kg de peso vivo, sendo dois terços da dose administrados em bolo e o complemento sob infusão contínua mostraram-se adequados para realização do exame tomográfico contrastado do tórax; a escolha da espessura dos cortes de 10 milímetros para animais com mais de trinta quilos e de 5 milímetros para animais com menos de trinta quilos mostrou-se adequada para avaliação de todo o tórax buscando-se atingir uma média de trinta cortes; as seleções de janela e nível para aquisição das imagens pulmonares, mediastinais e de arcabouço ósseo apresentaram-se adequadas à avaliação a partir dos valores de abertura de janela de: 1500 unidades Hounsfield (UH) com um nível entre -550 e -650 UH para pulmão, entre 250 e 300 UH com um nível entre 0 e 50 UH para mediastino e para avaliação do arcabouço ósseo de 1500 UH com um nível entre 50 e 350 UH.Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia2006-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/bjvras/article/view/2652310.11606/issn.1678-4456.bjvras.2006.26523Brazilian Journal of Veterinary Research and Animal Science; Vol. 43 Núm. 1 (2006); 95-102Brazilian Journal of Veterinary Research and Animal Science; Vol. 43 No. 1 (2006); 95-102Brazilian Journal of Veterinary Research and Animal Science; v. 43 n. 1 (2006); 95-102Brazilian Journal of Veterinary Research and Animal Science; V. 43 N. 1 (2006); 95-1021678-44561413-9596reponame:Brazilian Journal of Veterinary Research and Animal Scienceinstname:Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)instacron:USPporhttps://www.revistas.usp.br/bjvras/article/view/26523/28306Pinto, Ana Carolina Brandão de Campos FonsecaIwasaki, MasaoFigueiredo, CláudiaCortopassi, Sílvia Renata GaidoSterman, Franklin de Almeidainfo:eu-repo/semantics/openAccess2020-06-23T04:18:45Zoai:revistas.usp.br:article/26523Revistahttps://www.revistas.usp.br/bjvrasPUBhttps://www.revistas.usp.br/bjvras/oaibjvras@usp.br1413-95961413-9596opendoar:https://www.revistas.usp.br/bjvras/index2023-01-12T16:42:48.096098Brazilian Journal of Veterinary Research and Animal Science - Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)false
dc.title.none.fl_str_mv Computed tomography exam of the thorax of bitches with malignant mammary gland tumors: I - Technical exam determination
Tomografia computadorizada do tórax de cadelas portadoras de neoplasias mamárias malignas: I - determinação da técnica do exame
title Computed tomography exam of the thorax of bitches with malignant mammary gland tumors: I - Technical exam determination
spellingShingle Computed tomography exam of the thorax of bitches with malignant mammary gland tumors: I - Technical exam determination
Pinto, Ana Carolina Brandão de Campos Fonseca
Tomografia computadorizada
Técnica
Cavidade torácica
Cadelas
Computed tomography
Technique
Thoracic cavity
Bitches
title_short Computed tomography exam of the thorax of bitches with malignant mammary gland tumors: I - Technical exam determination
title_full Computed tomography exam of the thorax of bitches with malignant mammary gland tumors: I - Technical exam determination
title_fullStr Computed tomography exam of the thorax of bitches with malignant mammary gland tumors: I - Technical exam determination
title_full_unstemmed Computed tomography exam of the thorax of bitches with malignant mammary gland tumors: I - Technical exam determination
title_sort Computed tomography exam of the thorax of bitches with malignant mammary gland tumors: I - Technical exam determination
author Pinto, Ana Carolina Brandão de Campos Fonseca
author_facet Pinto, Ana Carolina Brandão de Campos Fonseca
Iwasaki, Masao
Figueiredo, Cláudia
Cortopassi, Sílvia Renata Gaido
Sterman, Franklin de Almeida
author_role author
author2 Iwasaki, Masao
Figueiredo, Cláudia
Cortopassi, Sílvia Renata Gaido
Sterman, Franklin de Almeida
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Pinto, Ana Carolina Brandão de Campos Fonseca
Iwasaki, Masao
Figueiredo, Cláudia
Cortopassi, Sílvia Renata Gaido
Sterman, Franklin de Almeida
dc.subject.por.fl_str_mv Tomografia computadorizada
Técnica
Cavidade torácica
Cadelas
Computed tomography
Technique
Thoracic cavity
Bitches
topic Tomografia computadorizada
Técnica
Cavidade torácica
Cadelas
Computed tomography
Technique
Thoracic cavity
Bitches
description Given the importance of malignant mammary gland tumors in veterinary medicine clinics, new perspectives of diagnostic imaging in order to evaluate pacients that have this neoplasia, and the lack of information about it in literature, this research intended to analyse some technical aspects of the contrast computed tomography scanning. The scanning time, the choice of the axial slices thickness, quality of the mediastinal vases contrast and the window width and level were studied in order to have images that make possible the evaluation of lungs, mediastinum, and bones. This research was performed at the Diagnostic Imaging Service of the Veterinary School Hospital of the Faculdade de Medicina Veterinária e Zootecnia at the University of São Paulo in twenty, different breed and age, bitches with malignant mammary gland tumors that were examined at the Obstetric and Ginecology and Small Animal Surgery Services of the same hospital. The average time for the complete contrast computed tomography scanning of the thorax, with nearly 30 slices, was thirty minutes; the ventral recumbency with the cranial traction of thoracic limbs, and the administration of intravenously iodine contrast medium (2ml/kg) that was given; two thirds of the dose in bolus and the complement under continuing infusion presented to be appropriate for the thoracic contrast computed tomography scanning. The 10 milimeters thickness for animals weighting over 30 kilograms and 5 milimeters for animals weighting under 30 kilograms presented to be appropriate in order to reach an average of thirty slices; the window and level selections to obtain pulmonary, mediastinal and bone images presented appropriate to be evaluated starting from window width 1500 Hounsfield unit (HU) with level varyng from -550 e -650 for lungs, window width between 250 to 300 HU with level varyng from 0 e 50 for mediastinum and window width of 1500 with the level between 50 and 350 HU.
publishDate 2006
dc.date.none.fl_str_mv 2006-02-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://www.revistas.usp.br/bjvras/article/view/26523
10.11606/issn.1678-4456.bjvras.2006.26523
url https://www.revistas.usp.br/bjvras/article/view/26523
identifier_str_mv 10.11606/issn.1678-4456.bjvras.2006.26523
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://www.revistas.usp.br/bjvras/article/view/26523/28306
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 Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia
publisher.none.fl_str_mv Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia
dc.source.none.fl_str_mv Brazilian Journal of Veterinary Research and Animal Science; Vol. 43 Núm. 1 (2006); 95-102
Brazilian Journal of Veterinary Research and Animal Science; Vol. 43 No. 1 (2006); 95-102
Brazilian Journal of Veterinary Research and Animal Science; v. 43 n. 1 (2006); 95-102
Brazilian Journal of Veterinary Research and Animal Science; V. 43 N. 1 (2006); 95-102
1678-4456
1413-9596
reponame:Brazilian Journal of Veterinary Research and Animal Science
instname:Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)
instacron:USP
instname_str Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)
instacron_str USP
institution USP
reponame_str Brazilian Journal of Veterinary Research and Animal Science
collection Brazilian Journal of Veterinary Research and Animal Science
repository.name.fl_str_mv Brazilian Journal of Veterinary Research and Animal Science - Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)
repository.mail.fl_str_mv bjvras@usp.br
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