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Permanent link (DOI): https://doi.org/10.7939/R39Z90K1T

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Accuracy and Reliability of CBCT imaging for Assessing Adenoid Hypertrophy Open Access

Descriptions

Other title
Subject/Keyword
Airway
Diagnosis
CBCT
Cone-beam Computed Tomography
Nasopharyngeal Obstruction
Adenoid Hypertrophy
Orthodontics
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Major, Michael P
Supervisor and department
Flores-Mir, Carlos (Dentistry)
Examining committee member and department
El-Hakim, Hamdy (Otolaryngology)
Stevenson, Tom (Dentistry)
Witmans, Manisha (Pediatrics)
Department
Medical Sciences-Orthodontics
Specialization

Date accepted
2013-08-15T11:42:21Z
Graduation date
2013-11
Degree
Master of Science
Degree level
Master's
Abstract
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.
Language
English
DOI
doi:10.7939/R39Z90K1T
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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