Alterations in Electrode Impedance Values in Response to Electrode Stimulation in the First Mapping Session of Children Using Clarion Cochlear Implant
Alterations in Electrode Impedance Values in Response to Electrode Stimulation in the First Mapping Session of Children Using Clarion Cochlear Implant
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使用 Clarion 人工耳蜗的儿童第一次测绘过程中电极刺激响应的电极阻抗值的变化
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
Moubedshahi Farzad
中科院分区：
文献类型：
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作者：
M. Z. Masoud;Borghei Hebetadin;Moubedshahi Farzad
电阻抗的测量可以提供有关人工耳蜗各电极状态的有用信息。在这方面，低阻抗测量可能表明在一个特定的电极短路。另一方面，高阻抗值可能表明电极断线或电极与空气接触。有报道称，人工耳蜗电极与螺旋神经节细胞之间的界面对于通过电刺激传递信息至关重要[2，]。已经证明，电流通过组织介质是由刺激参数，如电流、电压、刺激宽度、电极表面的特殊特性和电流通过的介质的性质所控制的。临床测量的主要传输效应是阻抗，即对电流流过任何特定介质的阻力的测量。电极的阻抗反映了电极及其邻近组织环境的电状态。
Measurement of electrical impedance can give useful information about the status of individual electrode of a cochlear implant. In this respect, low impedance measurements may suggest a short circuit in a particular electrode. On the other hand, high impedance values may show a broken electrode wire or an electrode in contact with air . It has been reported that the interface between the cochlear implant electrode and the spiral ganglion cells is critical to the passage of information via electrical stimulation [2, . It has been shown that passage of electrical current through a tissue medium was governed by stimulus parameters such as current, voltage, stimulus width, the particular characteristics of the electrode surface and the nature of the medium through which the electrical current is passed. The principal transmission effect measured clinically is impedance, i.e., the measure of resistance to the flow of electrical current through any particular medium . The impedance of an electrode reflects the electrical status of the electrode and its adjacent tissue environment .