Uppenkamp S, Neumann J, Aurbach G, Kollmeier B
Drittes Physikalisches Institut.
HNO. 1992 Nov;40(11):422-8.
The work here presents the first part of a prospective study regarding the clinical use of evoked otoacoustic emissions (EOAE) in adults. Sixty subjects with normal hearing and 160 patients suffering from cochlear hearing loss were tested. The results were used to develop and optimize analysis criteria for the emissions, based on their physical properties. A short-time Fourier analysis was performed so that the EOAE intensity in time and frequency domains could be observed simultaneously. A comparison of this data with the individual thresholds of hearing showed the importance of the EOAE level. However, the bandwidth of the EOAE demonstrated an even steeper transition between normal and hearing-impaired subjects. These findings suggest that this bandwidth is a better criterion for the detection of an EOAE. On the other hand, both parameters correlated weakly with the hearing threshold and the differences between subjects were very large. A prediction of hearing loss based on EOAE results is impossible with the wideband click stimulation used here.
本文介绍了一项关于诱发性耳声发射（EOAE）在成人临床应用的前瞻性研究的第一部分。对60名听力正常的受试者和160名患有耳蜗性听力损失的患者进行了测试。基于耳声发射的物理特性，利用测试结果制定并优化了耳声发射的分析标准。进行了短时傅里叶分析，以便能同时观察到耳声发射在时域和频域的强度。将该数据与个体听力阈值进行比较，显示出耳声发射水平的重要性。然而，耳声发射的带宽在正常受试者和听力受损受试者之间呈现出更陡峭的转变。这些发现表明，该带宽是检测耳声发射的更好标准。另一方面，这两个参数与听力阈值的相关性较弱，且受试者之间的差异非常大。使用此处的宽带短声刺激，基于耳声发射结果预测听力损失是不可能的。
