Comparing Panoramic Radiographs and CBCT: Impact on Radiographic Features and Differential Diagnoses

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Last Modified
  • March 20, 2019
Creator
  • Lim, Li Zhen
    • Affiliation: School of Dentistry, Oral Pathology Section, Oral and Maxillofacial Radiology Graduate Program
Abstract
  • Cone beam computed tomography (CBCT) is known to have many advantages over panoramic radiography (PAN). However, few studies quantitatively demonstrate the benefits of CBCT for imaging intraosseous pathology. The aims of this study were to determine whether lesion features appear differently on PAN and CBCT, and the clinical impact of CBCT vs PAN. Three oral radiologists reviewed 33 sets of PANs and CBCTs of biopsy-proven lesions, described lesion features and provided up to three ranked differential diagnoses and their confidence levels associated with each diagnosis. Confidence levels were weighted by the rank at which the correct diagnosis was provided. Differences were present between PAN and CBCT with respect to lesion border definition, continuity of corticated borders, effect on neurovascular canals, expansion, cortical thinning and destruction. There was no association between the two modalities and the rank at which the correct differential diagnoses was made, or with the observers’ weighted confidence levels.
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  • In Copyright
Advisor
  • Tyndall, Donald
  • Reside, Glenn
  • Padilla, Ricardo J.
Degree
  • Master of Science
Degree granting institution
  • University of North Carolina at Chapel Hill Graduate School
Graduation year
  • 2017
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