title: [Measurement of ostium area of maxillary sinus on three-dimensional imaging].
abstract: OBJECTIVE
  To measure the ostium area of normal maxillary sinus and maxillary sinus with inflammation on virtual endoscopy.
  
  
  METHODS
  After scanning on coronal or axial position, data were transferred to workstation. Such anatomic structures as ostiomeatal complex (OMC) were viewed by virtual endoscopy (VE). Under the same condition, pixel/mm was worked out.
  
  
  RESULTS
  Turbinates, meati and ostiomeatal complex were clearly viewed by virtual endoscopy(VE). The area of normal maxillary ostium was (16.45 +/- 1.21) mm2; the area of abnormal ostium was (18.28 +/- 2.12) mm2. The outside area of ethmoid infundibulum was (15.07 +/- 0.78) mm2 with normal maxillary sinus, and (17.19 +/- 1.59) mm2 maxillary sinus with inflamed.
  
  
  CONCLUSIONS
  The areas of mormal and inflamed maxillary sinuses are equal, the outside areas of ethmoid infundibulum are unequal for normal maxillary sinus and maxillary sinus with inflammation.
authors.affiliation: Department of Radiology, People Hospital of Wuhan University, Wuhan 430060, China. xiebaojun2001@yahoo.com.cn
authors.forename: Baojun
authors.initials: B
authors.lastname: Xie
authors.forename: Jiaji
authors.initials: J
authors.lastname: Yuan
authors.forename: Xiaohua
authors.initials: X
authors.lastname: Zheng
authors.forename: Zhanyuan
authors.initials: Z
authors.lastname: Wu
authors.forename: Jiahua
authors.initials: J
authors.lastname: Wan
authors.forename: Yuxin
authors.initials: Y
authors.lastname: Guo
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D008297:Male; D008443:Maxillary Sinus / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D015523:Maxillary Sinusitis / Q000000981:diagnostic imaging*; D008875:Middle Aged; D036542:Tomography, Spiral Computed / Q000379:methods*