Influence of dental metallic artifact from multislice CT in the assessment of simulated mandibular lesions
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of applied oral science (Online) |
Texto Completo: | https://www.revistas.usp.br/jaos/article/view/3775 |
Resumo: | OBJECTIVE: This study evaluated the influence of metallic dental artifacts on the accuracy of simulated mandibular lesion detection by using multislice technology. MATERIAL AND METHODS: Fifteen macerated mandibles were used. Perforations were done simulating bone lesions and the mandibles were subjected to axial 16 rows multislice CT images using 0.5 mm of slice thickness with 0.3 mm interval of reconstruction. Metallic dental restorations were done and the mandibles were subjected again to CT in the same protocol. The images were analyzed to detect simulated lesions in the mandibles, verifying the loci number and if there was any cortical perforation exposing medullar bone. The analysis was performed by two independent examiners using e-film software. RESULTS: The samples without artifacts presented better results compared to the gold standard (dried mandible with perforations). In the samples without artifacts, all cortical perforation were identified and 46 loci were detected (of 51) in loci number analysis. Among the samples with artifacts, 12 lesions out of 14 were recognized regarding medullar invasion, and 40 out of 51 concerning loci number. The sensitivity in samples without artifacts was 90% and 100% regarding loci number and medullar invasion, respectively. In samples with artifacts, these values dropped to 78% and 86%, respectively. The presence of metallic restorations affected the sensitivity values of the method, but the difference was not significant (p>;0.05). CONCLUSIONS: Although there were differences in the results of samples with and without artifacts, the presence of metallic restoration did not lead to misinterpretation of the final diagnosis. However, the validity of multislice CT imaging in this study was established for detection of simulated mandibular bone lesions. |
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Journal of applied oral science (Online) |
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Influence of dental metallic artifact from multislice CT in the assessment of simulated mandibular lesions MandibleTomography^i1^sX-ray compuPathology OBJECTIVE: This study evaluated the influence of metallic dental artifacts on the accuracy of simulated mandibular lesion detection by using multislice technology. MATERIAL AND METHODS: Fifteen macerated mandibles were used. Perforations were done simulating bone lesions and the mandibles were subjected to axial 16 rows multislice CT images using 0.5 mm of slice thickness with 0.3 mm interval of reconstruction. Metallic dental restorations were done and the mandibles were subjected again to CT in the same protocol. The images were analyzed to detect simulated lesions in the mandibles, verifying the loci number and if there was any cortical perforation exposing medullar bone. The analysis was performed by two independent examiners using e-film software. RESULTS: The samples without artifacts presented better results compared to the gold standard (dried mandible with perforations). In the samples without artifacts, all cortical perforation were identified and 46 loci were detected (of 51) in loci number analysis. Among the samples with artifacts, 12 lesions out of 14 were recognized regarding medullar invasion, and 40 out of 51 concerning loci number. The sensitivity in samples without artifacts was 90% and 100% regarding loci number and medullar invasion, respectively. In samples with artifacts, these values dropped to 78% and 86%, respectively. The presence of metallic restorations affected the sensitivity values of the method, but the difference was not significant (p>;0.05). CONCLUSIONS: Although there were differences in the results of samples with and without artifacts, the presence of metallic restoration did not lead to misinterpretation of the final diagnosis. However, the validity of multislice CT imaging in this study was established for detection of simulated mandibular bone lesions. Universidade de São Paulo. Faculdade de Odontologia de Bauru2010-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/jaos/article/view/377510.1590/S1678-77572010000200009Journal of Applied Oral Science; Vol. 18 No. 2 (2010); 149-154 Journal of Applied Oral Science; Vol. 18 Núm. 2 (2010); 149-154 Journal of Applied Oral Science; v. 18 n. 2 (2010); 149-154 1678-77651678-7757reponame:Journal of applied oral science (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/jaos/article/view/3775/4465Copyright (c) 2010 Journal of Applied Oral Scienceinfo:eu-repo/semantics/openAccessPerrella, AndréiaLopes, Patricia M. L.Rocha, Rodney G.Fenyo-Pereira, MarleneCavalcanti, Marcelo G. P.2012-04-27T12:08:38Zoai:revistas.usp.br:article/3775Revistahttp://www.scielo.br/jaosPUBhttps://www.revistas.usp.br/jaos/oai||jaos@usp.br1678-77651678-7757opendoar:2012-04-27T12:08:38Journal of applied oral science (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Influence of dental metallic artifact from multislice CT in the assessment of simulated mandibular lesions |
title |
Influence of dental metallic artifact from multislice CT in the assessment of simulated mandibular lesions |
spellingShingle |
Influence of dental metallic artifact from multislice CT in the assessment of simulated mandibular lesions Perrella, Andréia Mandible Tomography^i1^sX-ray compu Pathology |
title_short |
Influence of dental metallic artifact from multislice CT in the assessment of simulated mandibular lesions |
title_full |
Influence of dental metallic artifact from multislice CT in the assessment of simulated mandibular lesions |
title_fullStr |
Influence of dental metallic artifact from multislice CT in the assessment of simulated mandibular lesions |
title_full_unstemmed |
Influence of dental metallic artifact from multislice CT in the assessment of simulated mandibular lesions |
title_sort |
Influence of dental metallic artifact from multislice CT in the assessment of simulated mandibular lesions |
author |
Perrella, Andréia |
author_facet |
Perrella, Andréia Lopes, Patricia M. L. Rocha, Rodney G. Fenyo-Pereira, Marlene Cavalcanti, Marcelo G. P. |
author_role |
author |
author2 |
Lopes, Patricia M. L. Rocha, Rodney G. Fenyo-Pereira, Marlene Cavalcanti, Marcelo G. P. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Perrella, Andréia Lopes, Patricia M. L. Rocha, Rodney G. Fenyo-Pereira, Marlene Cavalcanti, Marcelo G. P. |
dc.subject.por.fl_str_mv |
Mandible Tomography^i1^sX-ray compu Pathology |
topic |
Mandible Tomography^i1^sX-ray compu Pathology |
description |
OBJECTIVE: This study evaluated the influence of metallic dental artifacts on the accuracy of simulated mandibular lesion detection by using multislice technology. MATERIAL AND METHODS: Fifteen macerated mandibles were used. Perforations were done simulating bone lesions and the mandibles were subjected to axial 16 rows multislice CT images using 0.5 mm of slice thickness with 0.3 mm interval of reconstruction. Metallic dental restorations were done and the mandibles were subjected again to CT in the same protocol. The images were analyzed to detect simulated lesions in the mandibles, verifying the loci number and if there was any cortical perforation exposing medullar bone. The analysis was performed by two independent examiners using e-film software. RESULTS: The samples without artifacts presented better results compared to the gold standard (dried mandible with perforations). In the samples without artifacts, all cortical perforation were identified and 46 loci were detected (of 51) in loci number analysis. Among the samples with artifacts, 12 lesions out of 14 were recognized regarding medullar invasion, and 40 out of 51 concerning loci number. The sensitivity in samples without artifacts was 90% and 100% regarding loci number and medullar invasion, respectively. In samples with artifacts, these values dropped to 78% and 86%, respectively. The presence of metallic restorations affected the sensitivity values of the method, but the difference was not significant (p>;0.05). CONCLUSIONS: Although there were differences in the results of samples with and without artifacts, the presence of metallic restoration did not lead to misinterpretation of the final diagnosis. However, the validity of multislice CT imaging in this study was established for detection of simulated mandibular bone lesions. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-04-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://www.revistas.usp.br/jaos/article/view/3775 10.1590/S1678-77572010000200009 |
url |
https://www.revistas.usp.br/jaos/article/view/3775 |
identifier_str_mv |
10.1590/S1678-77572010000200009 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/jaos/article/view/3775/4465 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2010 Journal of Applied Oral Science info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2010 Journal of Applied Oral Science |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo. Faculdade de Odontologia de Bauru |
publisher.none.fl_str_mv |
Universidade de São Paulo. Faculdade de Odontologia de Bauru |
dc.source.none.fl_str_mv |
Journal of Applied Oral Science; Vol. 18 No. 2 (2010); 149-154 Journal of Applied Oral Science; Vol. 18 Núm. 2 (2010); 149-154 Journal of Applied Oral Science; v. 18 n. 2 (2010); 149-154 1678-7765 1678-7757 reponame:Journal of applied oral science (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Journal of applied oral science (Online) |
collection |
Journal of applied oral science (Online) |
repository.name.fl_str_mv |
Journal of applied oral science (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
||jaos@usp.br |
_version_ |
1800221675451580416 |