正常青年人多频稳态听觉诱发电位阈值的测试

发布时间：2018-05-15 17:21

本文选题：多频稳态反应 + 纯音听阈　；参考：《安徽医药》2010年06期

【摘要】：目的探讨用ASSR阈值预测听力正常耳听力状况和缩短ASSR测试时间的可行性。方法选取28名听力正常的青年人作为受试者(56耳),对其进行纯音听阈和ASSR阈值测试,记录500、1000、2000和4000Hz四个频率纯音阈值、ASSR阈值出现时的搜索时间和ASSR阈值,根据ASSR阈值均数推测纯音听阈均值,分析ASSR阈值与其纯音听阈的关系和最大搜索时间对ASSR阈值检出率的影响。结果 ASSR在500、1000、2000和4000Hz四个频率的反应阈值分别是29±8、29±8、28±9和30±10dBHL,各频率反应阈值无明显差异(P0.05),各频率ASSR反应阈值与纯音听阈阈值之差在13～15dB之间,各频率ASSR反应阈值与纯音听阈阈值无明显相关性(P0.05),PTA预测值和PTA实测值相差8dB,四个频率最大搜索时间为6和9min时ASSR阈值检出率无明显差异(P0.05)。结论听力正常青年人ASSR反应阈值与纯音听阈阈值相差在15dB之内,但两者相关性较差,不宜直接用ASSR阈值预测听力正常人纯音听阈阈值;对于ICSChartrEP系统来说,将最大搜索时间设置为6min可以既不改变ASSR阈值的检出率又缩短ASSR的测试时间。
[Abstract]:Objective to study the feasibility of using ASSR threshold to predict the hearing status of normal ears and shorten the time of ASSR test. Methods Twenty-eight young people with normal hearing were selected as subjects. The pure tone hearing threshold and ASSR threshold were measured, and the search time and ASSR threshold were recorded. According to the mean of ASSR threshold, the relationship between ASSR threshold and pure tone threshold and the effect of maximum search time on the detection rate of ASSR threshold were analyzed. Results the response thresholds of ASSR at the four frequencies of 500 ~ 1000min ~ 2000 and 4000Hz were 29 卤8 ~ 29 卤8 ~ 8 卤28 卤9 and 30 卤10 dBHLs, respectively. There was no significant difference in the response thresholds of each frequency (P 0.05). The difference between the threshold of ASSR response and the threshold of pure tone hearing at each frequency was between 13~15dB. There was no significant correlation between the threshold of ASSR response and the threshold of pure tone audiometry. There was no significant difference in the detection rate of ASSR threshold between the predicted values of P0.05 and PTA and the measured values of PTA. There was no significant difference in the detection rate of ASSR thresholds between the four frequencies when the maximum search time was 6 and 9min. Conclusion the difference between ASSR response threshold and pure tone threshold in young people with normal hearing is within 15dB, but the correlation between them is poor, so it is not suitable to directly use ASSR threshold to predict pure tone threshold of normal hearing. Setting the maximum search time to 6min can not only change the detection rate of ASSR threshold but also shorten the test time of ASSR.
【作者单位】：安徽医科大学附属安徽省立医院耳鼻咽喉-头颈外科;
【分类号】：R764

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