Accuracy and Reliability of CBCT imaging for Assessing Adenoid Hypertrophy

• Author / Creator

  Major, Michael P

• Purpose: evaluate 1) reliability and accuracy of cone-beam computed tomography (CBCT) for assessing adenoid size compared to nasoendoscopy (NE), 2) Influence of clinical experience on CBCT diagnosis.
  Methods: Four blinded evaluators reviewed randomized CBCT images. Adenoid size was graded on a 4-point scale for CBCT and NE (by an pediatric otolaryngologist). Reliability was assessed with intra and inter-observer agreement. Accuracy was assessed with agreement between CBCT and NE, plus sensitivity / specificity analysis.
  Results: 39 consecutively assessed, non-syndromic subjects (11.5 ± 2.8 years) were evaluated. CBCT demonstrated excellent sensitivity (88%) and specificity (93%), strong accuracy (ICC = 0.80, 95% CI ± 0.15), and very good reliability, both within observers (ICC = 0.85, 95% CI ± 0.08) and between observers (ICC = 0.84 ± 0.08). Clinical experience of the CBCT evaluators did not have a statistically significant effect.
  Conclusions: CBCT is a reliable and accurate tool for identifying adenoid hypertrophy.

• Subjects / Keywords

  • Diagnosis
  • Nasopharyngeal Obstruction
  • Adenoid Hypertrophy
  • Airway
  • Orthodontics
  • Cone-beam Computed Tomography
  • CBCT

• Graduation date

  Fall 2013

• Type of Item

  Thesis

• Degree

  Master of Science

• DOI

  https://doi.org/10.7939/R39Z90K1T

• License

  This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.