Reproducibility of cephalometric landmarks on posteroanterior digital radiographs using DICOM and JPEG formats

Página do item simplificado
dc.citation.issue2
dc.citation.volume32
dc.contributor.authorSaez, Daniel Martinez
dc.contributor.authorBommarito, Silvana [UNIFESP]
dc.contributor.authorSannomiya, Eduardo Kazuo [UNIFESP]
dc.coverageNew York
dc.date.accessioned2020-07-22T13:23:00Z
dc.date.available2020-07-22T13:23:00Z
dc.date.issued2016
dc.description.abstractObjectives To evaluate the influence of DICOM and JPEG formats on the reproducibility of identification of cephalometric landmarks on posteroanterior digital radiographs. Methods The sample consisted of digital images of posteroanterior radiographs saved in DICOM formaten
dc.description.abstractthey were subsequently converted into JPEG format with quality factors of 100, 80, and 60. After sample blinding, 18 cephalometric points were identified on each image by three calibrated orthodontists using a system of x- and y-axis Cartesian coordinates. The intraclass correlation test was applied to analyze the occurrence of systematic errors, and Dahlberg's formula was used to calculate casual errors. The reproducibility between the DICOM and JPEG formats was compared by analysis of variance. All tests were conducted with a significance level of 5 %. Results Each examiner repeated the procedure 30 days after the initial test with 20 % of the images, which were randomly selected, in each file format. We found that the cephalometric landmarks in the posteroanterior digital radiographs presented intraexaminer and interexaminer reproducibilityen
dc.description.abstractthe exceptions were points ZL, ZR, AZ, JR, NC, and CN in the y-axis and A6 in the x-axis, which were due to intraclass correlations under 0.90 and casual error over 1.0 mm, irrespective of file format (DICOM or JPEG). Conclusions The DICOM and JPEG file formats and quality factors of 100, 80, and 60 did not affect the intraexaminer and interexaminer reproducibility of cephalometric landmarks.en
dc.description.affiliationSao Paulo Methodist Univ, Sch Dent, Orthodont Post Grad Program, Rua Planalto 106, BR-09640060 Sao Paulo, Brazil
dc.description.affiliationUniv Fed Sao Paulo, Speech Therapy Dept, Rua Botucatu 796, BR-04023900 Sao Paulo, Brazil
dc.description.affiliationUniv Fed Sao Paulo, Sch Med, Dept Diagnost Imaging, Rua Napoleao de Barros 800, BR-04024002 Sao Paulo, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo, Speech Therapy Dept, Rua Botucatu 796, BR-04023900 Sao Paulo, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo, Sch Med, Dept Diagnost Imaging, Rua Napoleao de Barros 800, BR-04024002 Sao Paulo, Brazil
dc.description.sourceWeb of Science
dc.format.extent79-86
dc.identifierhttp://dx.doi.org/10.1007/s11282-015-0217-5
dc.identifier.citationOral Radiology. New York, v. 32, n. 2, p. 79-86, 2016.
dc.identifier.doi10.1007/s11282-015-0217-5
dc.identifier.issn0911-6028
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/55980
dc.identifier.wosWOS:000375535700003
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofOral Radiology
dc.rightsAcesso restrito
dc.subjectCephalometricsen
dc.subjectRadiographic image enhancementen
dc.subjectDental radiographyen
dc.titleReproducibility of cephalometric landmarks on posteroanterior digital radiographs using DICOM and JPEG formatsen
dc.typeArtigo
Arquivos
Coleções
EPM - Artigos