Evaluation of the human airway using cone-beam computerized tomography

Objective The goal of this project was to define and measure human airway space with radiographic volumetric 3-dimensional imaging and digital reconstruction of the pharynx using cone-beam computerized tomography. Study design This was a randomized retrospective study. Ten patient scans were selecte...

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Published in:Oral surgery, oral medicine, oral pathology, oral radiology and endodontics oral medicine, oral pathology, oral radiology and endodontics, 2009-11, Vol.108 (5), p.768-776
Main Authors: Tso, Hung Hsiag, BS, Lee, Janice S., DDS, MD, MS, Huang, John C., DMD, DMedSc, Maki, Koutaro, DDS, PhD, Hatcher, David, DDS, MSc, MRCD(C), Miller, Arthur J., PhD
Format: Article
Language:English
Subjects:
Adolescent
Adult
Aged
Airway Obstruction - diagnostic imaging
Anatomy, Cross-Sectional
Biological and medical sciences
Cone-Beam Computed Tomography
Dentistry
Female
Humans
Imaging, Three-Dimensional
Male
Medical sciences
Otorhinolaryngology. Stomatology
Pharynx - diagnostic imaging
Pharynx - pathology
Radiographic Image Interpretation, Computer-Assisted
Retrospective Studies
Surgery
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Summary:Objective The goal of this project was to define and measure human airway space with radiographic volumetric 3-dimensional imaging and digital reconstruction of the pharynx using cone-beam computerized tomography. Study design This was a randomized retrospective study. Ten patient scans were selected randomly from a pool of 196 subjects seeking dental treatment at the University of California, San Francisco. Digital Imaging and Communications in Medicine–format volume images were captured using a low-radiation rapid-scanning cone-beam computerized tomography system (Hitachi MercuRay). Results Detailed progressive rostrocaudal cross-sectional area histograms indicated that 8 of the 10 subjects demonstrated a region of maximum constriction near the oropharynx level. The most restricted cross-sectional area varied from 90 mm2 to 360 mm2. Conclusions The maximum constriction of the airway in 10 subjects quietly breathing for 10 seconds indicated variation in the level of the pharynx and the extent of the rostrocaudal zone of restriction.
ISSN:1079-2104
1528-395X
DOI:10.1016/j.tripleo.2009.05.026