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Postoperative imaging of the multichannel cochlear implant
B A Shpizner1, R A Holliday, J T Roland
1Department of Radiology, New York (NY) University Medical Center 10016, USA.
AJNR. American Journal of Neuroradiology
|August 1, 1995
Summary
Postoperative radiographs effectively assess multichannel cochlear implant placement. Computed tomography (CT) is recommended for unclear cases or suspected infections.
Area of Science:
- Radiology
- Otolaryngology
- Neurosurgery
Background:
- Multichannel cochlear implants are crucial for hearing restoration.
- Accurate postoperative assessment ensures optimal device function and patient outcomes.
Purpose of the Study:
- To describe the typical postoperative radiographic appearance of multichannel cochlear implants.
- To establish guidelines for evaluating patients after cochlear implantation.
Main Methods:
- Retrospective review of 141 patients (73 female, 68 male) who received multichannel cochlear implants.
- Analysis of 135 intraoperative radiographs, 31 postoperative radiographs, and 10 postoperative CT scans.
Main Results:
- Standard radiographs confirmed normal electrode array placement in 135 patients.
- CT scans clarified electrode array location in 5 patients and identified infection-related collections in 3 patients.
Conclusions:
- Plain temporal bone radiographs are adequate for most postoperative cochlear implant evaluations.
- CT is indicated when plain radiographs are inconclusive or infection is suspected.