Image quality in partially erased DenOptix® storage phosphor plates

Detalhes bibliográficos
Autor(a) principal: Lopes,Sérgio Lúcio Pereira de Castro
Data de Publicação: 2008
Outros Autores: Cruz,Adriana Dibo da, Ferreira,Rívea Inês, Bóscolo,Frab Norberto, Almeida,Solange Maria de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Oral Research
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242008000100014
Resumo: This study aimed at investigating the effect of the partial erasing of DenOptix® system storage phosphor plates on the image quality of digital radiographs. Standardized digital radiographs were acquired of a phantom mandible, using size 2 intraoral DenOptix® storage phosphor plates (n = 10). Subsequently, the active areas of the plates were placed in a viewing box with a constant light intensity of 1,700 lux for 130 seconds to achieve complete erasing (control plate), as well as for 0, 5, 10, 15, 20, 25, 34, 66, and 98 seconds, to compose the experimental group of partially erased plates. The same exposure settings were repeated using the control and experimental plates, which were scanned at a resolution of 300 dpi. Five radiologists independently examined the pairs of digital radiographs obtained with the control and partially erased plates, in random order, and indicated the best image for oral diagnosis. Cochran-Mantel-Haenszel’s chi-square test, at a significance level of 5%, was used to compare the percentages of superior quality images in each combination of control and partially erased plates, subjectively assessed. No significant differences were found between radiographic images acquired with control and partially erased plates, except for the combination of 0 second (30%) versus 130 seconds (70%), p = 0.0047. It can be concluded that, under adequate light intensity conditions, erasing intraoral DenOptix® storage phosphor plates may require time intervals of as little as 5 seconds.
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spelling Image quality in partially erased DenOptix® storage phosphor platesDiagnosisRadiography, dental, digitalQuality controlThis study aimed at investigating the effect of the partial erasing of DenOptix® system storage phosphor plates on the image quality of digital radiographs. Standardized digital radiographs were acquired of a phantom mandible, using size 2 intraoral DenOptix® storage phosphor plates (n = 10). Subsequently, the active areas of the plates were placed in a viewing box with a constant light intensity of 1,700 lux for 130 seconds to achieve complete erasing (control plate), as well as for 0, 5, 10, 15, 20, 25, 34, 66, and 98 seconds, to compose the experimental group of partially erased plates. The same exposure settings were repeated using the control and experimental plates, which were scanned at a resolution of 300 dpi. Five radiologists independently examined the pairs of digital radiographs obtained with the control and partially erased plates, in random order, and indicated the best image for oral diagnosis. Cochran-Mantel-Haenszel’s chi-square test, at a significance level of 5%, was used to compare the percentages of superior quality images in each combination of control and partially erased plates, subjectively assessed. No significant differences were found between radiographic images acquired with control and partially erased plates, except for the combination of 0 second (30%) versus 130 seconds (70%), p = 0.0047. It can be concluded that, under adequate light intensity conditions, erasing intraoral DenOptix® storage phosphor plates may require time intervals of as little as 5 seconds.Sociedade Brasileira de Pesquisa Odontológica - SBPqO2008-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242008000100014Brazilian Oral Research v.22 n.1 2008reponame:Brazilian Oral Researchinstname:Sociedade Brasileira de Pesquisa Odontológica (SBPqO)instacron:SBPQO10.1590/S1806-83242008000100014info:eu-repo/semantics/openAccessLopes,Sérgio Lúcio Pereira de CastroCruz,Adriana Dibo daFerreira,Rívea InêsBóscolo,Frab NorbertoAlmeida,Solange Maria deeng2008-04-10T00:00:00Zoai:scielo:S1806-83242008000100014Revistahttps://www.scielo.br/j/bor/https://old.scielo.br/oai/scielo-oai.phppob@edu.usp.br||bor@sbpqo.org.br1807-31071806-8324opendoar:2008-04-10T00:00Brazilian Oral Research - Sociedade Brasileira de Pesquisa Odontológica (SBPqO)false
dc.title.none.fl_str_mv Image quality in partially erased DenOptix® storage phosphor plates
title Image quality in partially erased DenOptix® storage phosphor plates
spellingShingle Image quality in partially erased DenOptix® storage phosphor plates
Lopes,Sérgio Lúcio Pereira de Castro
Diagnosis
Radiography, dental, digital
Quality control
title_short Image quality in partially erased DenOptix® storage phosphor plates
title_full Image quality in partially erased DenOptix® storage phosphor plates
title_fullStr Image quality in partially erased DenOptix® storage phosphor plates
title_full_unstemmed Image quality in partially erased DenOptix® storage phosphor plates
title_sort Image quality in partially erased DenOptix® storage phosphor plates
author Lopes,Sérgio Lúcio Pereira de Castro
author_facet Lopes,Sérgio Lúcio Pereira de Castro
Cruz,Adriana Dibo da
Ferreira,Rívea Inês
Bóscolo,Frab Norberto
Almeida,Solange Maria de
author_role author
author2 Cruz,Adriana Dibo da
Ferreira,Rívea Inês
Bóscolo,Frab Norberto
Almeida,Solange Maria de
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Lopes,Sérgio Lúcio Pereira de Castro
Cruz,Adriana Dibo da
Ferreira,Rívea Inês
Bóscolo,Frab Norberto
Almeida,Solange Maria de
dc.subject.por.fl_str_mv Diagnosis
Radiography, dental, digital
Quality control
topic Diagnosis
Radiography, dental, digital
Quality control
description This study aimed at investigating the effect of the partial erasing of DenOptix® system storage phosphor plates on the image quality of digital radiographs. Standardized digital radiographs were acquired of a phantom mandible, using size 2 intraoral DenOptix® storage phosphor plates (n = 10). Subsequently, the active areas of the plates were placed in a viewing box with a constant light intensity of 1,700 lux for 130 seconds to achieve complete erasing (control plate), as well as for 0, 5, 10, 15, 20, 25, 34, 66, and 98 seconds, to compose the experimental group of partially erased plates. The same exposure settings were repeated using the control and experimental plates, which were scanned at a resolution of 300 dpi. Five radiologists independently examined the pairs of digital radiographs obtained with the control and partially erased plates, in random order, and indicated the best image for oral diagnosis. Cochran-Mantel-Haenszel’s chi-square test, at a significance level of 5%, was used to compare the percentages of superior quality images in each combination of control and partially erased plates, subjectively assessed. No significant differences were found between radiographic images acquired with control and partially erased plates, except for the combination of 0 second (30%) versus 130 seconds (70%), p = 0.0047. It can be concluded that, under adequate light intensity conditions, erasing intraoral DenOptix® storage phosphor plates may require time intervals of as little as 5 seconds.
publishDate 2008
dc.date.none.fl_str_mv 2008-03-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242008000100014
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242008000100014
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1806-83242008000100014
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 Sociedade Brasileira de Pesquisa Odontológica - SBPqO
publisher.none.fl_str_mv Sociedade Brasileira de Pesquisa Odontológica - SBPqO
dc.source.none.fl_str_mv Brazilian Oral Research v.22 n.1 2008
reponame:Brazilian Oral Research
instname:Sociedade Brasileira de Pesquisa Odontológica (SBPqO)
instacron:SBPQO
instname_str Sociedade Brasileira de Pesquisa Odontológica (SBPqO)
instacron_str SBPQO
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reponame_str Brazilian Oral Research
collection Brazilian Oral Research
repository.name.fl_str_mv Brazilian Oral Research - Sociedade Brasileira de Pesquisa Odontológica (SBPqO)
repository.mail.fl_str_mv pob@edu.usp.br||bor@sbpqo.org.br
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