[HRCT imaging characterized of congenital abnormalities of the inner ear in 45 cases].
OBJECTIVE
To explore the high resolution CT (HRCT) image characterized of congenital abnormalities of the inner ear(CAIE), and its value in the diagnosis and treatment of CAIE.


METHODS
The clinic data and axial HRCT scans of CAIE in 45 cases were analyzed.


RESULTS
In 45 CAIE patients, most of them were frequently associated with slowly progressive sensorineural hearing loss in childhood, 15 ears were fluctuating hearing loss. Seventeen ears were unilateral semicircular canal paralysis. HRCT showed that Michel type 3 cases(4 ears), Mondini type 25 cases(39 ears). Large vestibular aqueduct malformation not associated with anomalies of inner ears 13 cases(23 ears), anomalies of internal auditory canal 4 cases (5 ears). Thirteen ears were associated with outer and middle ear malformation.


CONCLUSIONS
HRCT image has the important value in the diagnosis and treatment of CAIE, especially for the excerpt of indication of cochlear implantation.
Wang
Jinling
J
Department of Otolaryngology of Xijing Hospital, Fourth Military Medical University, Xi'an 710032.
Meng
Meijuan
M
Huan
Yi
Y
Zhang
Jinsong
J
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D019929:Cochlear Implantation; D007758:Ear, Inner / Q000002:abnormalities* / Q000000981:diagnostic imaging*; D005260:Female; D006319:Hearing Loss, Sensorineural / Q000151:congenital / Q000000981:diagnostic imaging* / Q000209:etiology; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed / Q000379:methods