Comparison between cone-beam and multislice computed tomography for identification of simulated bone lesions

Autor(es)

Gaia, Bruno Felipe ^[1] ; Oliveira de Sales, Marcelo Augusto ^[2] ; Perrella, Andreia ; Fenyo-Pereira, Marlene ^[3] ; Paraiso Cavalcanti, Marcelo Gusmao ^[3]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Sch Dent, Dept Stomatol, Sao Paulo - Brazil

^[2] Univ Fed Paraiba, Sch Dent, Dept Radiol, BR-58059900 Joao Pessoa, Paraiba - Brazil

^[3] Univ Sao Paulo, Sch Dent, Dept Radiol, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Brazilian Oral Research; v. 25, n. 4, p. 362-368, JUL-AUG 2011.
• Citações Web of Science: 9

Resumo

There are many studies that compare the accuracy of multislice (MSCT) and cone beam (CBCT) computed tomography for evaluations in the maxillofacial region. However, further studies comparing both acquisition techniques for the evaluation of simulated mandibular bone lesions are needed. The aim of this study was to compare the accuracy of MSCT and CBCT in the diagnosis of simulated mandibular bone lesions by means of cross sectional images and axial/MPR slices. Lesions with different dimensions, shape and locularity were produced in 15 dry mandibles. The images were obtained following the cross sectional and axial/MPR (Multiplanar Reconstruction) imaging protocols and were interpreted independently. CBCT and MSCT showed similar results in depicting the percentage of cortical bone involvement, with great sensitivity and specificity (p < 0.005). There were no significant intra- or inter-examiner differences between axial/MPR images and cross sectional images with regard to sensitivity and specificity. CBCT showed results similar to those of MSCT for the identification of the number of simulated bone lesions. Cross sectional slices and axial/MPR images presented high accuracy, proving useful for bone lesion diagnosis. (AU)

• Processo FAPESP: 05/02157-8 - Validação de medidas dento-maxilo-faciais por meio da tomografia computadorizada mutlislice em 3D
• Beneficiário: Marcelo de Gusmão Paraíso Cavalcanti
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 06/05251-8 - Avaliacao comparativa entre tc multislice e tomografia computadorizada por feixe conico para identificacao de lesoes osseas mandibulares utilizando a reconstrucao em 3d.
• Beneficiário: Marcelo Augusto Oliveira de Sales
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado