利用实时阻抗感应推断插入过程中的直人工耳蜗电极阵列定位

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS
Katherine E. Riojas, Trevor L. Bruns, Josephine Granna, Miriam R. Smetak, Robert F. Labadie, Robert J. Webster III
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引用次数: 0

摘要

目前,人工耳蜗电极阵列(EA)的插入反馈有限,而阻抗传感技术最近已显示出 EA 定位的前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Towards inferring positioning of straight cochlear-implant electrode arrays during insertion using real-time impedance sensing

Background

Cochlear-implant electrode arrays (EAs) are currently inserted with limited feedback, and impedance sensing has recently shown promise for EA localisation.

Methods

We investigate the use of impedance sensing to infer the progression of an EA during insertion.

Results

We show that the access resistance component of bipolar impedance sensing can detect when a straight EA reaches key anatomical locations in a plastic cochlea and when each electrode contact enters/exits the cochlea. We also demonstrate that dual-sided electrode contacts can provide useful proximity information and show the real-time relationship between impedance and wall proximity in a cadaveric cochlea for the first time.

Conclusion

The access resistance component of bipolar impedance sensing has high potential for estimating positioning information of EAs relative to anatomy during insertion. Main limitations of this work include using saline as a surrogate for human perilymph in ex vivo models and using only one type of EA.

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来源期刊
ACS Applied Bio Materials
ACS Applied Bio Materials Chemistry-Chemistry (all)
CiteScore
9.40
自引率
2.10%
发文量
464
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