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Influence of voxel size on cone beam computed tomography artifacts arising from the exomass.
Candemil, Amanda P; Salmon, Benjamin; Ambrosano, Gláucia M B; Freitas, Deborah Q; Haiter-Neto, Francisco; Oliveira, Matheus L.
Afiliação
  • Candemil AP; Researcher, Division of Oral Radiology, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba-SP, Brazil.
  • Salmon B; Professor, Orofacial Pathologies, Imaging and Biotherapies Lab, Université de Paris, Montrouge, France; Professor, Dental Medicine Departments, Bretonneau Hospital, Paris, France.
  • Ambrosano GMB; Professor, Department of Community Dentistry, Piracicaba Dental School, University of Campinas, Piracicaba-SP, Brazil.
  • Freitas DQ; Professor, Division of Oral Radiology, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba-SP, Brazil.
  • Haiter-Neto F; Professor, Division of Oral Radiology, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba-SP, Brazil.
  • Oliveira ML; Professor, Division of Oral Radiology, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba-SP, Brazil. Electronic address: matheuso@unicamp.br.
Oral Surg Oral Med Oral Pathol Oral Radiol ; 132(4): 456-464, 2021 10.
Article em En | MEDLINE | ID: mdl-33422474
OBJECTIVES: The objective of this study was to evaluate the influence of voxel size on artifacts arising from the exomass in cone beam computed tomography (CBCT). STUDY DESIGN: An imaging phantom was scanned using 2 CBCT units, each adjusted to 2 voxel sizes: 0.2 and 0.3 mm. From 1 to 3 metal inserts of titanium, cobalt-chromium, or amalgam were placed in the exomass and additional CBCT scans were acquired. Mean voxel gray values were obtained from 16 homogeneous areas of the phantom and averaged, and the standard deviation was calculated to obtain voxel gray value variability. The data were analyzed using 2-way analysis of variance, Tukey, and Dunnett tests (α =.05). RESULTS: Overall, mean voxel gray values and voxel gray value variability did not differ significantly between CBCT scans obtained with voxel sizes of 0.2 and 0.3 mm for either CBCT model tested (P > .05). Despite some exceptions in which significant differences were observed between the 2 voxel sizes (P < .05), the mean voxel gray values and voxel gray value variability resulting from different metal compositions and, in most situations, for different numbers of metal inserts in the exomass were not affected. CONCLUSION: Voxel size has little influence on exomass-related CBCT artifacts.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Artefatos / Tomografia Computadorizada de Feixe Cônico Limite: Humans Idioma: En Revista: Oral Surg Oral Med Oral Pathol Oral Radiol Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Artefatos / Tomografia Computadorizada de Feixe Cônico Limite: Humans Idioma: En Revista: Oral Surg Oral Med Oral Pathol Oral Radiol Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos