Imaging procedures in cochlear implant patients--evaluation of different radiological techniques.

摘要: The purpose of this study was to evaluate the feasibility and usability different radiologic methods (single-slice computed tomography (CT), multi-slice CT rotational (RT)) for assessment position cochlear implant electrodes. Cochlear implants in an isolated human temporal bone a complete formalin-fixed cadaver head were examined electrode determined. Subsequently, labyrinth out histologically compare results histology with imaging. Single-slice reliably identifies inside cochlea; however, due technically based large artifact its spaces (e.g. scala tympani or vestibuli) cannot be detected. Multi-slice also showed artifacts that complicate position. Using RT is small therefore within spaces, versus vestibuli, can assessed. This technique applicable head, which contrast former studies. In conclusion, allows identification arrays cochlea. permits much more precise depiction alone has minimized high extent vestibuli. As performed successfully further studies evaluation intracochlear now patients.