title: A comparative study of accuracy of detection of surface osseous changes in the temporomandibular joint using multidetector CT and cone beam CT.
abstract: OBJECTIVE
  The aim of this study was to assess the accuracy and reliability of cone beam CT (CBCT) images compared with multidetector CT (MDCT) images for the detection of surface osseous changes in temporomandibular joints (TMJs).
  
  
  METHODS
  Naked-eye inspection of 110 sites in 10 TMJs from 5 dry human skulls provided the gold standard. Two radiologists interpreted the images. Sensitivity, specificity and kappa statistics were used for analysis.
  
  
  RESULTS
  The sensitivities of both modalities were low and comparable whereas the specificities were high and comparable. Intraobserver reliabilities for CBCT (p=0.0005) and for MDCT (p=0.0001) showed significant agreement. Interobserver reliability was higher for CBCT than for MDCT.
  
  
  CONCLUSIONS
  CBCT and MDCT accuracy was comparable in detecting surface osseous changes with comparable intraobserver reliabilities. However, since CBCT requires less radiation exposure, it should be encouraged for imaging TMJ with suspected surface osseous changes.
authors.affiliation: Maxillofacial Radiology Department, Dental Center Riyadh Medical Complex, Saudi Arabia. ebtihalh@gmail.com
authors.forename: E H
authors.initials: EH
authors.lastname: Zain-Alabdeen
authors.forename: R I
authors.initials: RI
authors.lastname: Alsadhan
mesh_terms: D054893:Cone-Beam Computed Tomography / Q000592:standards*; D006801:Humans; D061330:Multidetector Computed Tomography / Q000592:standards*; D015588:Observer Variation; D054850:Osteophyte / Q000000981:diagnostic imaging / Q000473:pathology; D011829:Radiation Dosage; D011856:Radiographic Image Enhancement / Q000592:standards; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013701:Temporal Bone / Q000000981:diagnostic imaging / Q000473:pathology; D013704:Temporomandibular Joint / Q000000981:diagnostic imaging* / Q000473:pathology; D013705:Temporomandibular Joint Disorders / Q000000981:diagnostic imaging* / Q000473:pathology