Açai juice as contrast agent in MRCP exams: qualitative and quantitative image evaluation
Autor(a) principal: | |
---|---|
Data de Publicação: | 2019 |
Outros Autores: | , , , , |
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. |
id |
TECPAR-1_8c18a09ae5bc0f172ecb0f089bd2c14b |
---|---|
oai_identifier_str |
oai:scielo:S1516-89132019000100600 |
network_acronym_str |
TECPAR-1 |
network_name_str |
Brazilian Archives of Biology and Technology |
repository_id_str |
|
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 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100600 |
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 |
_version_ |
1750318279551877120 |