[The application of spiral-CT three-dimensional reconstruction in chronic otitis media].
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.
Liu
Y
Y
First Hospital, Beijing Medical University, Beijing 100034.
Gu
Z
Z
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