Fig 1.
Location of the anatomic landmarks on the midsagittal plane and upper airway subregions of interest defined according to the landmarks.
Landmarks: PNS, posterior nasal spine; TUV, tip of the uvula; MUE, midpoint between tip of the uvula and tip of the epiglottis; TEP, tip of the epiglottis; and BEP, base of epiglottis. Subregions: V, velopharynx region; O, oropharynx region; T, tongue base region; and E, epiglottis region.
Fig 2.
Measurement of minimum cross-sectional area (MCA), using Blender software.
(A) “Dead space” (yellow shadow) of the evaluated airway. (B) “Islands” (red shadow) of the evaluated airway. (C) Anteroposterior dimension (AP) and lateral dimension (LAT) of MCA.
Table 1.
Definition of airway parameters.
Table 2.
Descriptive statistics of variables (N = 10), intra-individual variation and repeatability (N = 10), and inter-operator variation and reliability (n = 5).
Table 3.
Bland-Altman analysis of difference between two scans (T0 and T1) (N = 10).