目的探讨畸变产物耳声发射对伪聋的诊断价值。
The study of distortion products otoacoustic emissions in pseudo-anacousia;
畸变产物耳声发射；声阻抗；高危新生儿；听力筛查。
Distortion - product Otoacoustic Emission (DPOAE); Impedance Audiometry; risk newborn; Hearing screening.
通过铁缺乏对畸变产物耳声发射影响的研究，探讨DPOAE的临床应用。
To evaluate clinical application of DPOAE through the study of the effect of IDDPOAE.
目的：了解畸变产物耳声发射（DPOAE）在监测噪声性聋方面的应用价值。
Objective:To understand the value of using distortion product of otoacoustic emissions(DPOAE)in monitoring noise induced hearing loss.
目的了解噪声对飞行员畸变产物耳声发射(DPOAE)的影响及其与纯音听阈的关系。
Objective to investigate the effect of noise on DPOAE in pilots and its relation with pure tone auditory thresholds.
方法采用畸变产物耳声发射（DPOAE）对NICU中高危新生儿进行听力筛查，未通过者进行复筛；
Methods The hearing screen was conducted in the high-risk neonates of NICU using the distortion products otoacoustic emissions (DPOAE). Cases without passing the screen was given the screen again.
方法测定20只豚鼠听性脑干反应（ABR）阈和畸变产物耳声发射（DPOAE）振幅，观察耳蜗毛细胞静纤毛变异形态，计数变异的毛细胞数目。
Methods Auditory brainstem response(ABR)and otoacoustic emission of distortion products(DPOAE)were assayed to 20 guinea pigs, then variant hair cells were observed and counted.
方法测定20只豚鼠听性脑干反应（ABR）阈和畸变产物耳声发射（DPOAE）振幅，观察耳蜗毛细胞静纤毛变异形态，计数变异的毛细胞数目。
Methods Auditory brainstem response(ABR)and otoacoustic emission of distortion products(DPOAE)were assayed to 20 guinea pigs, then variant hair cells were observed and counted.
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