title: [The upper airway CT scan in patients with obstructive sleep apnea syndrome].
abstract: OBJECTIVE
  To compare the CT scan results in OSAS patients and normal adults so as to explore its value in measuring upper airway structure.
  
  
  METHODS
  53 patients with OSAS and 53 normal adults were included in the study. The upper airway from roof of nasopharynx to glottis was evaluated with the use of a Phlips Tomoscan AV Expander E1 spiral scanner. The area and the dimensions of palate, uvula, lingua and epiglottis region was studied, and the thickness of retropharyngeal and lateral pharyngeal tissue were evaluated, too.
  
  
  RESULTS
  There were obviously differences between OSAS patients and normal adults in the areas of palate, uvula, lingua, and there are differences of dimension and thickness in different sites.
  
  
  CONCLUSIONS
  The study suggests that there is a obviously difference between the patients with OSAS and normal adult in upper airway by CT scan. The anatomic structure of upper airway is one of causes of OSAS.
authors.affiliation: Department of Otolaryngology, Shenyang General Hospital of PLA, Shenyang 110015.
authors.forename: Shuhua
authors.initials: S
authors.lastname: Li
authors.forename: Sheng
authors.initials: S
authors.lastname: Qu
authors.forename: Xin
authors.initials: X
authors.lastname: Dong
authors.forename: Dong
authors.initials: D
authors.lastname: Chen
authors.forename: Weidong
authors.initials: W
authors.lastname: Dong
authors.forename: Guiru
authors.initials: G
authors.lastname: Wang
authors.forename: Hongjin
authors.initials: H
authors.lastname: Shi
authors.forename: Yongqiang
authors.initials: Y
authors.lastname: Yu
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010160:Palate, Soft / Q000000981:diagnostic imaging; D010614:Pharynx / Q000000981:diagnostic imaging*; D020181:Sleep Apnea, Obstructive / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed / Q000379:methods*; D014059:Tongue / Q000000981:diagnostic imaging; D014609:Uvula / Q000000981:diagnostic imaging