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The Cochlea

The Cochlea

The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.

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相关实验视频

Updated: May 25, 2025

Performing Intracochlear Electrocochleography During Cochlear Implantation

Performing Intracochlear Electrocochleography During Cochlear Implantation

Published on: March 8, 2022

电耳机学延迟:在耳植入过程中与电极位置的相关性

Raphael R Andonie^1,2, Wilhelm Wimmer^2,3, Reto A Wildhaber^4,5

¹ARTORG Center for Biomedical Engineering Research, Bern University Hospital, University of Bern, Bern, Switzerland.

Ear and hearing

|February 26, 2025

概括

耳微声延迟 (CML) 可以在耳植入 (CI) 手术期间跟踪电极位置. 这种方法源自电耳管学 (ECochG),显示了实时监测的潜力,但与残留听力保护无关.

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Last Updated: May 25, 2025

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科学领域:

奥托声学排放和电生理学
神经科学和生物工程是神经科学.
手术监测技术手术监测技术

背景情况:

耳植入器 (CI) 手术的目的是保护残留的听力.
耳内电耳学 (ECochG) 通过耳微声 (CM) 振幅监测耳健康.
准确解释CM信号需要考虑电极插入深度和由此产生的信号延迟.

研究的目的:

分析耳微声延迟 (CML) 作为实时跟踪手术期间CI电极位置的客观方法.
调查CML与手术前残留听力之间的关联.

主要方法:

在插入电极期间,对30名CI患者进行了手术期间ECochG记录.
耳微声延迟 (CML) 由不同频率的ECochG测量得出.
手术后的CT扫描确定了电极位置,CML与使用线性回归的插入深度相关.

主要成果:

在插入期间和之后,CML与线性电极插入深度 (p < 0.001) 有显著的相关性.
结果与已知的基底膜延迟一致,尽管个体间存在差异.
在CML和手术前残留听力之间没有发现显著的关联.

结论:

客观提取的CML有效地编码了CI患者的耳内电极位置.
通过实时电极位置跟踪,CML显示了增强手术内ECochG分析的潜力.
需要对更大的队列进行进一步的研究,以了解个人间的CML变异.