Açai juice as contrast agent in MRCP exams: qualitative and quantitative image evaluation

Detalhes bibliográficos
Autor(a) principal: Pinho,Kátia Elisa Prus
Data de Publicação: 2019
Outros Autores: Pinho,Antonio Carlos, Pisani,Julio Cesar, Goedert,Carlos Alberto, Gusso,Andreia Magri, Gewehr,Pedro Miguel
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Archives of Biology and Technology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100600
Resumo: Abstract This works aims to assess images obtained with administration of açai juice as compared to a manufactured standard iron oxide-based contrast employed as negative oral agents in Magnetic Resonance Cholangiopancreatography (MRCP), employing qualitative and quantitative evaluation. The research was developed with 64 patients submitted to MRCP exams (on 2 days) in a clinic of Curitiba city (Brazil). First (day 1), a manufactured iron oxide-based contrast (A) was offered and later (day 2), açai juice (contrast B) was given to patients. Radiologists (R1 and R2) evaluated the images, classifying them by a score (1-4). In order to have a quantitative assessment, Image J free software was employed generating plots of gray levels against distance of a chosen area of the bile duct interest region. Evaluating images for contrast A, R1 furnished an average score of 3.52 and R2 of 3.27. For contrast B, R1 provided 3.44 and R2 3.38. Both evaluators considered image quality with contrast A adequate for 62 patients. R1 considered adequate for 62 and R2 for 60 patients when using açai juice. By taking same images for all patients with Image J, a quantitative analysis was obtained, resulting correlation coefficient of 0.986 between average curves of contrasts A and B. Thus, açai juice is an adequate alternative as contrast agent in MRCP exams. Image J was employed as a new method for quantitative investigation of image quality, presenting good agreement with medical opinion.
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spelling Açai juice as contrast agent in MRCP exams: qualitative and quantitative image evaluationAçai contrast agentiron oxide contrastmagnetic resonance cholangiopancreatographyimage qualityimage JAbstract This works aims to assess images obtained with administration of açai juice as compared to a manufactured standard iron oxide-based contrast employed as negative oral agents in Magnetic Resonance Cholangiopancreatography (MRCP), employing qualitative and quantitative evaluation. The research was developed with 64 patients submitted to MRCP exams (on 2 days) in a clinic of Curitiba city (Brazil). First (day 1), a manufactured iron oxide-based contrast (A) was offered and later (day 2), açai juice (contrast B) was given to patients. Radiologists (R1 and R2) evaluated the images, classifying them by a score (1-4). In order to have a quantitative assessment, Image J free software was employed generating plots of gray levels against distance of a chosen area of the bile duct interest region. Evaluating images for contrast A, R1 furnished an average score of 3.52 and R2 of 3.27. For contrast B, R1 provided 3.44 and R2 3.38. Both evaluators considered image quality with contrast A adequate for 62 patients. R1 considered adequate for 62 and R2 for 60 patients when using açai juice. By taking same images for all patients with Image J, a quantitative analysis was obtained, resulting correlation coefficient of 0.986 between average curves of contrasts A and B. Thus, açai juice is an adequate alternative as contrast agent in MRCP exams. Image J was employed as a new method for quantitative investigation of image quality, presenting good agreement with medical opinion.Instituto de Tecnologia do Paraná - Tecpar2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100600Brazilian Archives of Biology and Technology v.62 2019reponame:Brazilian Archives of Biology and Technologyinstname:Instituto de Tecnologia do Paraná (Tecpar)instacron:TECPAR10.1590/1678-4324-2019160697info:eu-repo/semantics/openAccessPinho,Kátia Elisa PrusPinho,Antonio CarlosPisani,Julio CesarGoedert,Carlos AlbertoGusso,Andreia MagriGewehr,Pedro Migueleng2019-06-11T00:00:00Zoai:scielo:S1516-89132019000100600Revistahttps://www.scielo.br/j/babt/https://old.scielo.br/oai/scielo-oai.phpbabt@tecpar.br||babt@tecpar.br1678-43241516-8913opendoar:2019-06-11T00:00Brazilian Archives of Biology and Technology - Instituto de Tecnologia do Paraná (Tecpar)false
dc.title.none.fl_str_mv Açai juice as contrast agent in MRCP exams: qualitative and quantitative image evaluation
title Açai juice as contrast agent in MRCP exams: qualitative and quantitative image evaluation
spellingShingle Açai juice as contrast agent in MRCP exams: qualitative and quantitative image evaluation
Pinho,Kátia Elisa Prus
Açai contrast agent
iron oxide contrast
magnetic resonance cholangiopancreatography
image quality
image J
title_short Açai juice as contrast agent in MRCP exams: qualitative and quantitative image evaluation
title_full Açai juice as contrast agent in MRCP exams: qualitative and quantitative image evaluation
title_fullStr Açai juice as contrast agent in MRCP exams: qualitative and quantitative image evaluation
title_full_unstemmed Açai juice as contrast agent in MRCP exams: qualitative and quantitative image evaluation
title_sort Açai juice as contrast agent in MRCP exams: qualitative and quantitative image evaluation
author Pinho,Kátia Elisa Prus
author_facet Pinho,Kátia Elisa Prus
Pinho,Antonio Carlos
Pisani,Julio Cesar
Goedert,Carlos Alberto
Gusso,Andreia Magri
Gewehr,Pedro Miguel
author_role author
author2 Pinho,Antonio Carlos
Pisani,Julio Cesar
Goedert,Carlos Alberto
Gusso,Andreia Magri
Gewehr,Pedro Miguel
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Pinho,Kátia Elisa Prus
Pinho,Antonio Carlos
Pisani,Julio Cesar
Goedert,Carlos Alberto
Gusso,Andreia Magri
Gewehr,Pedro Miguel
dc.subject.por.fl_str_mv Açai contrast agent
iron oxide contrast
magnetic resonance cholangiopancreatography
image quality
image J
topic Açai contrast agent
iron oxide contrast
magnetic resonance cholangiopancreatography
image quality
image J
description Abstract This works aims to assess images obtained with administration of açai juice as compared to a manufactured standard iron oxide-based contrast employed as negative oral agents in Magnetic Resonance Cholangiopancreatography (MRCP), employing qualitative and quantitative evaluation. The research was developed with 64 patients submitted to MRCP exams (on 2 days) in a clinic of Curitiba city (Brazil). First (day 1), a manufactured iron oxide-based contrast (A) was offered and later (day 2), açai juice (contrast B) was given to patients. Radiologists (R1 and R2) evaluated the images, classifying them by a score (1-4). In order to have a quantitative assessment, Image J free software was employed generating plots of gray levels against distance of a chosen area of the bile duct interest region. Evaluating images for contrast A, R1 furnished an average score of 3.52 and R2 of 3.27. For contrast B, R1 provided 3.44 and R2 3.38. Both evaluators considered image quality with contrast A adequate for 62 patients. R1 considered adequate for 62 and R2 for 60 patients when using açai juice. By taking same images for all patients with Image J, a quantitative analysis was obtained, resulting correlation coefficient of 0.986 between average curves of contrasts A and B. Thus, açai juice is an adequate alternative as contrast agent in MRCP exams. Image J was employed as a new method for quantitative investigation of image quality, presenting good agreement with medical opinion.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100600
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dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1678-4324-2019160697
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Instituto de Tecnologia do Paraná - Tecpar
publisher.none.fl_str_mv Instituto de Tecnologia do Paraná - Tecpar
dc.source.none.fl_str_mv Brazilian Archives of Biology and Technology v.62 2019
reponame:Brazilian Archives of Biology and Technology
instname:Instituto de Tecnologia do Paraná (Tecpar)
instacron:TECPAR
instname_str Instituto de Tecnologia do Paraná (Tecpar)
instacron_str TECPAR
institution TECPAR
reponame_str Brazilian Archives of Biology and Technology
collection Brazilian Archives of Biology and Technology
repository.name.fl_str_mv Brazilian Archives of Biology and Technology - Instituto de Tecnologia do Paraná (Tecpar)
repository.mail.fl_str_mv babt@tecpar.br||babt@tecpar.br
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