title: [The application of spiral-CT three-dimensional reconstruction in chronic otitis media].
abstract: OBJECTIVE
  To study the use of spiral-CT three-dimensional reconstruction in chronic otitis media.
  
  
  METHODS
  The images of spiral-CT three-dimensional reconstruction (SCT-3DI) and surgical findings in 22 ears with chronic otitis media were compared.
  
  
  RESULTS
  The lesions showed in SCT-3DI were in accord with those seen in the operation. There were no bone erosion in the 3 ears with simple type otitis media, and the 19 ears with cholesteatoma showed: abnormal soft-tissue and bony erosion in the tympanic cavity and antrum; dislocation and disruption of the ossicular chain; and showed disruption of sigmoid sinus plate, tegmen tympani, semicircular canal and facial nerve canal in severe cases.
  
  
  CONCLUSIONS
  The spiral-CT has more superiority over traditional-CT in diagnosis of lesions in chronic otitis media before operation.
authors.affiliation: First Hospital, Beijing Medical University, Beijing 100034.
authors.forename: Y
authors.initials: Y
authors.lastname: Liu
authors.forename: Z
authors.initials: Z
authors.lastname: Gu
mesh_terms: D000328:Adult; D018424:Cholesteatoma, Middle Ear / Q000000981:diagnostic imaging* / Q000601:surgery; D002908:Chronic Disease; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D008297:Male; D008875:Middle Aged; D010035:Otitis Media, Suppurative / Q000000981:diagnostic imaging* / Q000601:surgery; D014057:Tomography, X-Ray Computed