Dreher A, Suckfüll M, Schneeweiss S, Schorn K
Klinik und Poliklinik für Hals-, Nasen- und Ohrenkranke, Ludwig-Maximilians-Universität München.
Laryngorhinootologie. 1997 Jan;76(1):2-7. doi: 10.1055/s-2007-997377.
Otoacoustic emissions can be used to study cochlear function in a non-invasive manner. They are an effective clinical tool for infant hearing screening. The purpose of this study was to determine their utility for a frequency-specific and quantitative estimation of the hearing threshold.
Transiently evoked otoacoustic emissions (TEOAE) and distortion-product emissions (DPOAE) were recorded from 16 normal and 86 hearing impaired ears and correlated with their hearing threshold between 0.5 and 6.0 kHz.
The correlations of TEOAE and the hearing threshold ranged from 0.53 (0.5 kHz) to 0.69 (6.0 kHz), of the DPOAE from 0.51 (0.5 kHz) to 0.83 (6.0 kHz). Based on the optimal correlating OAE frequency we tried to predict the hearing threshold. We obtained 95% prediction intervals for TEOA between 19 dB (1.0 kHz) and 39 dB (4.0 and 6.0 kHz), for DPOAE between 21 dB (1.0) and 34 dB (3.0 and 4.0 kHz).
Despite their clinically irrelevant greater prediction intervals at the low frequencies, our results suggest that DPOAEs are generally more valuable for the frequency-specific estimation of the hearing threshold. Prediction intervals may improve the interpretation of OAEs.
耳声发射可用于以非侵入性方式研究耳蜗功能。它们是婴儿听力筛查的有效临床工具。本研究的目的是确定其在特定频率和定量估计听力阈值方面的效用。
记录了16只正常耳朵和86只听力受损耳朵的瞬态诱发耳声发射（TEOAE）和畸变产物耳声发射（DPOAE），并将其与0.5至6.0kHz之间的听力阈值相关联。
TEOAE与听力阈值的相关性范围为0.53（0.5kHz）至0.69（6.0kHz），DPOAE的相关性范围为0.51（0.5kHz）至0.83（6.0kHz）。基于最佳相关的耳声发射频率，我们试图预测听力阈值。我们获得了TEOAE在19dB（1.0kHz）至39dB（4.0和6.0kHz）之间、DPOAE在21dB（1.0）至34dB（3.0和4.0kHz）之间的95%预测区间。
尽管在低频时其预测区间在临床上无关紧要，但我们的结果表明，DPOAE通常在特定频率估计听力阈值方面更有价值。预测区间可能会改善对耳声发射的解释。
