Micro-focus fluoroscopy - a great tool for electrode development

Cochlear Implants International
Jin XuRobert Cowan

Abstract

The aim of this study was to utilise micro-focus X-ray fluoroscopy for viewing electrode movement in the cochlea. Various prototypes of newly designed cochlear implant electrodes were evaluated during insertion studies on human cadaver temporal bones. The magnified fluoroscopic images were observed in real-time and recorded for retrospective studies. In 30 insertions of hearing preservation (Hybrid-L) arrays, fluoroscopy provided crucial information on the tip design, length of array and stiffening stylet. In 44 insertions of Contour Advance enhanced (CAe) arrays, the length, curvature, depth of insertion and degree of stiffness were assessed. CAe arrays were successfully inserted to the designated depth and positioned close to the modiolus. High quality micro-focus fluoroscopic images of electrode movement in the cochlea greatly assisted in the validation of newly designed intra-cochlear electrode arrays.

References

Nov 8, 2001·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·J XuR S Cowan

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Citations

May 15, 2018·Journal of Neural Engineering·Robert K ShepherdDavid A X Nayagam
Sep 22, 2015·The Journal of Laryngology and Otology·J-F YuY-C Peng

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