Objective and subjective image evaluation of maxillary alveolar bone based on cone-beam CT exposure parameters

Publication date: Available online 13 February 2016
Source:Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Author(s): Pollyana Marques de Moura, Rami Hallac, James Seaward, Alex Kane, Marcelo Aguiar, Ronir Raggio, Bianca Gutfilen
ObjectivesThe purpose of this study was to optimize the exposure parameters for cone-beam computed tomography (CBCT) for performing diagnostic imaging of maxillary alveolar bone.Study DesignCBCT (PROMAX 3D MAX) WAS PERFORMED ON A FROZEN HUMAN CADAVER HEAD. Image homogeneity and the degree of alveolar bone contrast were determined by objective assessment USING IMAGEJ SOFTWARE and subjective assessment by orthodontists and oral radiologists. Kruskal–Wallis tests and interrater agreement were used to compare results across groups.ResultsImage homogeneity and degree of alveolar bone contrast differed significantly among all exposure protocols (P < 0.001). Intraclass correlation values ranged from 0.681 to 0.779, with orthodontists having higher than for oral radiologists. Average of image quality scores between protocols were statistically significant (P < 0.001) and ranged from "fair" to "good".ConclusionsThere is great potential to reduce CBCT radiation doses for the maxillary alveolar bone while maintaining adequate image quality for diagnosis.

Teaser

Diagnostic imaging of orthodontic patients with craniofacial anomalies involves repetitive exposure of relatively young patients to radiation. There is a high potential to reduce CBCT radiation doses for maxillary alveolar bone while maintaining adequate image quality for diagnosis.


from #MedicinebyAlexandrosSfakianakis via xlomafota13 on Inoreader http://ift.tt/1PT0SBj
via IFTTT