Prieve B A, Gorga M P, Schmidt A, Neely S, Peters J, Schultes L, Jesteadt W
Boys Town National Research Hospital, Omaha, Nebraska 68131.
J Acoust Soc Am. 1993 Jun;93(6):3308-19. doi: 10.1121/1.405715.
Transient-evoked otoacoustic emissions (TEOAEs) were measured in 113 normal-hearing and hearing-impaired ears to examine repeatability within a test session, which TEOAE parameter (level, TEOAE level-to-noise or reproducibility) best identified hearing loss and if the TEOAE separated into frequency-specific bands identified hearing loss in a corresponding frequency region. TEOAEs and stimulus levels were found to be very repeatable. For broadband TEOAEs, TEOAE level, TEOAE-to-noise, and % reproducibility were found to identify hearing loss equally well, based on measurement of the area underlying relative operator characteristic curves. Analysis for frequency-specific bands showed that separation of normal-hearing and hearing-impaired ears depended on frequency, with best identification at 2000 and 4000 Hz, identification at 1000 Hz slightly worse, and virtually no separation between normal-hearing and hearing-impaired ears at 500 Hz. Again, all three parameters were essentially equal in identifying hearing loss. Subjective evaluations of presence or absence of TEOAEs was highly correlated between two judges, with good agreement for TEOAEs at 1000, 2000, and 4000 Hz. The findings from this study suggest that TEOAEs will be valuable for clinical use because of their repeatability and identification of hearing-impaired ears.
对113只听力正常和听力受损的耳朵进行了瞬态诱发耳声发射（TEOAEs）测量，以检查测试过程中的重复性，哪种TEOAEs参数（水平、TEOAEs与噪声水平或可重复性）能最佳识别听力损失，以及分离为特定频率带的TEOAEs是否能识别相应频率区域的听力损失。发现TEOAEs和刺激水平具有很高的可重复性。对于宽带TEOAEs，根据相对操作者特征曲线下方的面积测量，发现TEOAEs水平、TEOAEs与噪声水平以及可重复性百分比在识别听力损失方面同样有效。对特定频率带的分析表明，听力正常和听力受损耳朵的分离取决于频率，在2000Hz和4000Hz时识别效果最佳，在1000Hz时稍差，在500Hz时听力正常和听力受损耳朵之间几乎没有分离。同样，所有三个参数在识别听力损失方面基本相同。两位评判者对TEOAEs是否存在的主观评估高度相关，在1000Hz、2000Hz和4000Hz时对TEOAEs的一致性良好。本研究结果表明，由于TEOAEs具有可重复性且能识别听力受损耳朵，因此对临床应用具有重要价值。
