[Preoperative cochlear implantation imaging].
OBJECTIVE
To investigate the value of CT and MRI as preoperative imaging technique for cochlear implant candidates.


METHODS
Axial high-resolution temporal bone CT and T2-weighted FSE-MRI were performed in 26 patients with sensorineural hearing loss. Three-dimensional reconstruction of inner ear was compared between CT and MRI.


RESULTS
There were 1 case (2 ears) with Mondini malformation type I , 1 case (2 ears)with Mondini malformation type II , 1 case (2 ears) with inner fibrosis in 18 patients with congenital sensorineural hearing loss. There were 1 case (2 ears) with chronic suppurative otitis meadia, 1 case (2 ears) with inner ossification in 5 patients with postlingually deafness.


CONCLUSIONS
CT plays an indispensable role in evaluation of cochlear implantation. T2-weighted FSE-MRI is necessarily complementary to CT. MRI three-dimensional reconstruction of inner ear is better than CT.
Zhu
Jian
J
Department of Radiology, Zhujiang Hospital, the First Military Medical University, Guangzhou 510282.
Wen
Zhibo
Z
Huang
Fanheng
F
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D019929:Cochlear Implantation; D007758:Ear, Inner / Q000000981:diagnostic imaging; D005260:Female; D006319:Hearing Loss, Sensorineural / Q000175:diagnosis* / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D008875:Middle Aged; D013701:Temporal Bone / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed / Q000379:methods*