Comparison Of Different Methods To Assess Alveolar Cleft Defects In Cone Beam Ct Images

dc.creatorBarbosa
dc.creatorGLD; Wood
dc.creatorJS; Pimenta
dc.creatorLA; de Almeida
dc.creatorSM; Tyndall
dc.creatorDA
dc.date2016
dc.date2016-12-06T18:30:01Z
dc.date2016-12-06T18:30:01Z
dc.date.accessioned2018-03-29T02:02:35Z
dc.date.available2018-03-29T02:02:35Z
dc.identifier1476-542X
dc.identifierDentomaxillofacial Radiology. BRITISH INST RADIOLOGY, n. 45, n. 2, p. .
dc.identifier0250-832X
dc.identifierWOS:000370397400005
dc.identifier10.1259/dmfr.20150332
dc.identifierhttp://www.birpublications.org/doi/abs/10.1259/dmfr.20150332
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/319934
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1310700
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionThis study aimed to evaluate the accuracy of three different methods for assessing the volume of cleft defects in CBCT images. The influence of field of view (FOV) and voxel sizes was also assessed. Methods: Using three radio-opaque plastic skulls, unilateral defects were created to mimic alveolar clefts and were filled with wax following the contralateral side contours. They were scanned in a CBCT unit using four different acquisition protocols, varying FOV and voxel sizes. Using three different methods, the defect/wax volume was evaluated on the images by defining: (1) the width, height and facial-palatal length of the defect in maximum intensity projection; (2) the areas of the defect on axial slices; and (3) the threshold and segmentation of the region of interest. The values obtained from each method using different acquisition protocols were compared with the real volume of the wax (gold standard) using ANOVA and Tukey's test. Results: Methods 2 and 3 did not differ from the gold standard (p > 0.05). Conversely, Method 1 presented statistically significant overestimated values (p < 0.01). No differences were found among the different FOV and voxel sizes (p > 0.05). Conclusions: CBCT volumes proved reliable for the volumetric assessment of alveolar cleft defects, when using Methods 2 and 3 regardless of FOV and voxel sizes. It may be possible to improve surgical planning and outcomes by knowing the exact volume of grafting material needed prior to the surgical intervention.
dc.description45
dc.description
dc.description
dc.description
dc.descriptionCAPES Foundation (Brazil)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description
dc.description
dc.description
dc.languageEnglish
dc.publisherBRITISH INST RADIOLOGY
dc.publisherLONDON
dc.relationDentomaxillofacial Radiology
dc.rightsembargo
dc.sourceWOS
dc.subjectOrofacial Cleft
dc.subjectCbct
dc.subjectAlveolar Bone Grafting
dc.titleComparison Of Different Methods To Assess Alveolar Cleft Defects In Cone Beam Ct Images
dc.typeArtículos de revistas


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