期刊
OTOLOGY & NEUROTOLOGY
卷 26, 期 1, 页码 34-37出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/00129492-200501000-00007
关键词
cochlear implant; insertion; electrode; imaging; intracochlear trauma
Objective: To investigate the intracochlear electrode position in using rotational tomography in adult cochlear implant patients. Study Design: Retrospective. Setting: Tertiary referral center. Patients: Eighteen adult patients being implanted either with a Nucleus straight electrode at-ray or a Contour electrode with a total of 22 implanted ears. Preoperative computed tomography had been without evidence for obliteration, ossification, or malformation of the cochlea. Intervention: Rotational tomography. Main Outcome Measures: The intracochlear electrode position was evaluated with regard to scala tympani, scala vestibuli, and a dislocation from one scala to the other. The intraoperative procedure was compared with the electrode position by analyzing the operating reports. Results: Preliminary results indicate, respectively, that there is a higher incidence of intracochlear trauma in using the Contour electrode array than expected with a more frequent dislocation of electrode arrays from scala tympani to scala vestibuli and that there is a higher rate of scala vestibuli insertions. Conclusions: The impact of these findings may influence further developments of electrode arrays as well as surgical techniques for implantation.
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