瞬态诱发耳声发射测试结果分析

Analysis of measured results of transientevoked otoacoustic emissions

目的：为取得听功能正常耳瞬态耳声发射测试结果的正常值敏感参数，为临床应用提供诊断依据。方法：采用ＩＬＯ－８８耳动态分析仪对听功能正常的６０耳进行测试。短声声刺激强度为８０ｄＢＳＰＬ，刺激方式为非线性模式。结果：对稳定性、Ａ－Ｂ差值、反应幅值、波重复性、频带重复性及信噪比、主频等分别进行分析，得出了正常值。结论：频谱分析、反应幅值及重复性三者综合分析为判断听力正常与否的主要敏感参数。

Objective: In order to provide grounds for clinical diagnosis,the normal sensitive parameters of the transient evoked otoacoustic emissions (TEOAE) in normal ears were studied. Method: 60 ears with normal hearing subjects using ILO88 otodynamic analyzer system were measured,the click stimuli level is 80 dB SPL and the stimuli pattern used nonlinear model. Result: Analysis of the normal values of the stability,AB difference,response amplitude,wave reproducibility,band reproducibility and band SNR,dominant frequencies were obtained. Conclusion: The findings from comprehensive analysis of spectrum,response amplitude and reproducibility can be used as main sensitive parameters to evaluated whether or not of normalhearing.