Reproducibility of pixel values for two photostimulable phosphor plates in consecutive standardized scannings

Detalhes bibliográficos
Autor(a) principal: Freitas,Patrícia
Data de Publicação: 2006
Outros Autores: Yaedú,Renato Yassutaka Faria, Rubira-Bullen,Izabel Regina Fischer, Escarpinati,Maurício, Vieira,Marcelo Costa, Schiabel,Homero, Lauris,José Roberto
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Oral Research
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242006000300005
Resumo: The objective of the present study was to determine the reproducibility of the pixel values obtained with the Digora system (Soredex, Finland). Exposures were standardized, with variation in exposure and scanning time of two photostimulable phosphor plates containing a stepwedge image. The smallest variation in pixel values ranged from 50 to 75%, with the widest variations being observed in less dense steps. A significant difference in pixel values was observed in terms of X-ray exposure and scanning times and between the two plates themselves (ANOVA, p < 0.01). Using the present methodology, the reproducibility of pixel values was not satisfactory for the tested white photostimulable plates. This wide variation in digitalization might be influenced by the amount of X-rays that sensitized the plates. It may be important to establish the reproducibility of the pixel values in quantitative studies using digital image.
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spelling Reproducibility of pixel values for two photostimulable phosphor plates in consecutive standardized scanningsRadiographydentaldigitalReproducibility of resultsThe objective of the present study was to determine the reproducibility of the pixel values obtained with the Digora system (Soredex, Finland). Exposures were standardized, with variation in exposure and scanning time of two photostimulable phosphor plates containing a stepwedge image. The smallest variation in pixel values ranged from 50 to 75%, with the widest variations being observed in less dense steps. A significant difference in pixel values was observed in terms of X-ray exposure and scanning times and between the two plates themselves (ANOVA, p < 0.01). Using the present methodology, the reproducibility of pixel values was not satisfactory for the tested white photostimulable plates. This wide variation in digitalization might be influenced by the amount of X-rays that sensitized the plates. It may be important to establish the reproducibility of the pixel values in quantitative studies using digital image.Sociedade Brasileira de Pesquisa Odontológica - SBPqO2006-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242006000300005Brazilian Oral Research v.20 n.3 2006reponame:Brazilian Oral Researchinstname:Sociedade Brasileira de Pesquisa Odontológica (SBPqO)instacron:SBPQO10.1590/S1806-83242006000300005info:eu-repo/semantics/openAccessFreitas,PatríciaYaedú,Renato Yassutaka FariaRubira-Bullen,Izabel Regina FischerEscarpinati,MaurícioVieira,Marcelo CostaSchiabel,HomeroLauris,José Robertoeng2006-10-10T00:00:00Zoai:scielo:S1806-83242006000300005Revistahttps://www.scielo.br/j/bor/https://old.scielo.br/oai/scielo-oai.phppob@edu.usp.br||bor@sbpqo.org.br1807-31071806-8324opendoar:2006-10-10T00:00Brazilian Oral Research - Sociedade Brasileira de Pesquisa Odontológica (SBPqO)false
dc.title.none.fl_str_mv Reproducibility of pixel values for two photostimulable phosphor plates in consecutive standardized scannings
title Reproducibility of pixel values for two photostimulable phosphor plates in consecutive standardized scannings
spellingShingle Reproducibility of pixel values for two photostimulable phosphor plates in consecutive standardized scannings
Freitas,Patrícia
Radiography
dental
digital
Reproducibility of results
title_short Reproducibility of pixel values for two photostimulable phosphor plates in consecutive standardized scannings
title_full Reproducibility of pixel values for two photostimulable phosphor plates in consecutive standardized scannings
title_fullStr Reproducibility of pixel values for two photostimulable phosphor plates in consecutive standardized scannings
title_full_unstemmed Reproducibility of pixel values for two photostimulable phosphor plates in consecutive standardized scannings
title_sort Reproducibility of pixel values for two photostimulable phosphor plates in consecutive standardized scannings
author Freitas,Patrícia
author_facet Freitas,Patrícia
Yaedú,Renato Yassutaka Faria
Rubira-Bullen,Izabel Regina Fischer
Escarpinati,Maurício
Vieira,Marcelo Costa
Schiabel,Homero
Lauris,José Roberto
author_role author
author2 Yaedú,Renato Yassutaka Faria
Rubira-Bullen,Izabel Regina Fischer
Escarpinati,Maurício
Vieira,Marcelo Costa
Schiabel,Homero
Lauris,José Roberto
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Freitas,Patrícia
Yaedú,Renato Yassutaka Faria
Rubira-Bullen,Izabel Regina Fischer
Escarpinati,Maurício
Vieira,Marcelo Costa
Schiabel,Homero
Lauris,José Roberto
dc.subject.por.fl_str_mv Radiography
dental
digital
Reproducibility of results
topic Radiography
dental
digital
Reproducibility of results
description The objective of the present study was to determine the reproducibility of the pixel values obtained with the Digora system (Soredex, Finland). Exposures were standardized, with variation in exposure and scanning time of two photostimulable phosphor plates containing a stepwedge image. The smallest variation in pixel values ranged from 50 to 75%, with the widest variations being observed in less dense steps. A significant difference in pixel values was observed in terms of X-ray exposure and scanning times and between the two plates themselves (ANOVA, p < 0.01). Using the present methodology, the reproducibility of pixel values was not satisfactory for the tested white photostimulable plates. This wide variation in digitalization might be influenced by the amount of X-rays that sensitized the plates. It may be important to establish the reproducibility of the pixel values in quantitative studies using digital image.
publishDate 2006
dc.date.none.fl_str_mv 2006-09-01
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=S1806-83242006000300005
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242006000300005
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1806-83242006000300005
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.20 n.3 2006
reponame:Brazilian Oral Research
instname:Sociedade Brasileira de Pesquisa Odontológica (SBPqO)
instacron:SBPQO
instname_str Sociedade Brasileira de Pesquisa Odontológica (SBPqO)
instacron_str SBPQO
institution SBPQO
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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