title: [Computed tomographic analysis of frontal recess region].
abstract: OBJECTIVE
  The purpose of the study was to observe the CT imaging features of the frontal recess regional.
  
  
  METHODS
  Eighty-two patients were undergone spiral computed tomography (CT). Then multiplanar reconstruction images were made using standard triplanar reconstruction protocol on a computer workstation.
  
  
  RESULTS
  The prevalence of agger nasi cell was 87.8% (144/164). One hundred and forty-five (89%, 145/164) uncinate processes had one superior attachment for each uncinate process. The others had two superior attachments for each uncinate process. The uncinate process' single superior attachment of into the surrounding structures was identified to have the following distribution: 90/164 (54.9%): to the lamina papyracea, 50/164 (30.5%) to the middle turbinate, and 5/164 (3.0%) to the skull base. Of all the frontal cells were identified in 144 (87.8%) sides of frontal recesses, the prevalence of type I II, type III IV, were 30.5% and 9.8% respectively.
  
  
  CONCLUSIONS
  T Agger nasi cell and uncinate process play an important role in endoscopic frontal sinus surgery.
authors.affiliation: Department of Otolaryngology, WISCO General Hospital, Wuhan, 430080, China. wangpengdragon@yahoo.com.cn
authors.forename: Peng
authors.initials: P
authors.lastname: Wang
authors.forename: Xunhua
authors.initials: X
authors.lastname: Xu
authors.forename: Ping
authors.initials: P
authors.lastname: Zhao
authors.forename: Hongtao
authors.initials: H
authors.lastname: Zhen
authors.forename: Qixue
authors.initials: Q
authors.lastname: Gao
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D005260:Female; D005625:Frontal Lobe / Q000000981:diagnostic imaging*; D005626:Frontal Sinus / Q000000981:diagnostic imaging*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008297:Male; D008875:Middle Aged; D009296:Nasal Cavity / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed; D014420:Turbinates / Q000000981:diagnostic imaging; D055815:Young Adult