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Article: Influence of contrast enhancement and pseudocolor transformation on the diagnosis with digital subtraction images (DSI).

TitleInfluence of contrast enhancement and pseudocolor transformation on the diagnosis with digital subtraction images (DSI).
Authors
Issue Date1994
PublisherWiley-Blackwell Publishing, Inc.. The Journal's web site is located at http://www.wiley.com/bw/journal.asp?ref=0022-3484&site=1
Citation
Journal Of Periodontal Research, 1994, v. 29 n. 2, p. 95-102 How to Cite?
AbstractThis study evaluated the influence of the image processing step of digital subtraction images on inter- and intraexaminer agreement in the interpretation of alveolar bone changes. 52 pairs of standardized radiographs from various clinical trials were included. Six dentists were invited to interpret the images projected as slides in random order. Display one demonstrated the slide of the digitized baseline radiograph and the follow-up image. Display two showed the regular digital subtraction image. Display three represented a grey level contrast enhanced version and displays four and five were pseudo/color enhanced subtraction images. Applying kappa-statistics and multiple regression analysis it was demonstrated that better agreements were obtained when the two color coded displays of subtraction images were shown to the interpreters. The image interpretation was performed in two series. For the first evaluation the interpreters were not informed about the therapy provided nor the time elapsed between taking the pairs of standardized radiographs. In the second series this information was provided. It could be demonstrated that the agreement in the diagnosis of bone change was less influenced by the knowledge about the clinical information if the two color-converted versions of subtracted images were evaluated. Thus, it was concluded that image processing of subtraction images using color enhancement might improve agreement in the diagnostic task. The color coded images were less influenced by the bias in the interpretation of an expected change. The decision making process might be more objective when using color enhanced subtraction images.
Persistent Identifierhttp://hdl.handle.net/10722/153873
ISSN
2015 Impact Factor: 2.474
2015 SCImago Journal Rankings: 0.932
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorBrägger, Uen_US
dc.contributor.authorBürgin, Wen_US
dc.contributor.authorMarconi, Men_US
dc.contributor.authorHäsler, RUen_US
dc.contributor.authorLang, NPen_US
dc.date.accessioned2012-08-08T08:22:02Z-
dc.date.available2012-08-08T08:22:02Z-
dc.date.issued1994en_US
dc.identifier.citationJournal Of Periodontal Research, 1994, v. 29 n. 2, p. 95-102en_US
dc.identifier.issn0022-3484en_US
dc.identifier.urihttp://hdl.handle.net/10722/153873-
dc.description.abstractThis study evaluated the influence of the image processing step of digital subtraction images on inter- and intraexaminer agreement in the interpretation of alveolar bone changes. 52 pairs of standardized radiographs from various clinical trials were included. Six dentists were invited to interpret the images projected as slides in random order. Display one demonstrated the slide of the digitized baseline radiograph and the follow-up image. Display two showed the regular digital subtraction image. Display three represented a grey level contrast enhanced version and displays four and five were pseudo/color enhanced subtraction images. Applying kappa-statistics and multiple regression analysis it was demonstrated that better agreements were obtained when the two color coded displays of subtraction images were shown to the interpreters. The image interpretation was performed in two series. For the first evaluation the interpreters were not informed about the therapy provided nor the time elapsed between taking the pairs of standardized radiographs. In the second series this information was provided. It could be demonstrated that the agreement in the diagnosis of bone change was less influenced by the knowledge about the clinical information if the two color-converted versions of subtracted images were evaluated. Thus, it was concluded that image processing of subtraction images using color enhancement might improve agreement in the diagnostic task. The color coded images were less influenced by the bias in the interpretation of an expected change. The decision making process might be more objective when using color enhanced subtraction images.en_US
dc.languageengen_US
dc.publisherWiley-Blackwell Publishing, Inc.. The Journal's web site is located at http://www.wiley.com/bw/journal.asp?ref=0022-3484&site=1en_US
dc.relation.ispartofJournal of Periodontal Researchen_US
dc.subject.meshAlveolar Bone Loss - Radiographyen_US
dc.subject.meshAlveolar Process - Radiographyen_US
dc.subject.meshBias (Epidemiology)en_US
dc.subject.meshColoren_US
dc.subject.meshHumansen_US
dc.subject.meshObserver Variationen_US
dc.subject.meshRadiographic Image Enhancement - Methodsen_US
dc.subject.meshRadiography, Dental - Methodsen_US
dc.subject.meshRegression Analysisen_US
dc.subject.meshReproducibility Of Resultsen_US
dc.subject.meshSubtraction Technique - Methodsen_US
dc.titleInfluence of contrast enhancement and pseudocolor transformation on the diagnosis with digital subtraction images (DSI).en_US
dc.typeArticleen_US
dc.identifier.emailLang, NP:nplang@hkucc.hku.hken_US
dc.identifier.authorityLang, NP=rp00031en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.pmid8158504-
dc.identifier.scopuseid_2-s2.0-0028391120en_US
dc.identifier.volume29en_US
dc.identifier.issue2en_US
dc.identifier.spage95en_US
dc.identifier.epage102en_US
dc.identifier.isiWOS:A1994NB04200002-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridBrägger, U=7005538598en_US
dc.identifier.scopusauthoridBürgin, W=7003413848en_US
dc.identifier.scopusauthoridMarconi, M=7102166930en_US
dc.identifier.scopusauthoridHäsler, RU=7006065023en_US
dc.identifier.scopusauthoridLang, NP=7201577367en_US

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