摘要
目的 观察神经反应遥测技术 (neuralresponsetelemetry,NRT)参数改变对其波形的影响。方法 本文对 2 0名Nucleus2 4型多导人工耳蜗植入患者进行NRT测试 ,选取反应波形较好的电极作为测试电极。每次只改变某一个测试参数 ,观察波形的变化 ,从而总结出各测试参数对波形产生的影响。结果 对波形影响较大的参数有电流强度 (currentlevel,CL)、刺激脉宽 (stimulatepulsewidth)、延迟时间 (delay)、增益 (gain)、掩蔽刺激间期 (maskerad vance)等。结论 对波形采集时间影响显著的是刺激速率和叠加次数。
Objective To inevestigate the changes of the responses by changing the parameters in the neural response tetemety(NRT).Methods In this project,twenty patients who were implanted in Nucleus C124M were measured the electrically evoked compound action potential(ECAP)using the NRT system.It was expected to observe the changes of the responses by changing the parameters in the NRT 2.04 software.Results It was found that the parameters that made great influences to the responses were current level,stimulate pulse width,gain,delay and masker advance.Conclusion The parameters that made great influences to the record time were stimulate rate and number of sweeps.
出处
《听力学及言语疾病杂志》
CAS
CSCD
2002年第2期67-69,共3页
Journal of Audiology and Speech Pathology
关键词
多导人工耳蜗
听神经复合动作电位
神经反应遥测
波形
Cochlear implant Electrically evoked compound action potential(ECAP) Neural response telemetry(NRT)
