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目的 :通过畸变产物耳声发射 (DPOAE)测试耳蜗性聋的敏感性、特异性和符合率来评估其测试效能。方法 :测试听力正常人 86耳和耳蜗性聋 98耳的DPOAE ,其 1～ 6kHz各个频率的幅值与对应频率的电测听纯音听阈相比较 ,用所得到患耳蜗性聋敏感性和特异性值作受试者作业特征曲线 ,并计算其面积 ,其面积值并不因为DPOAE用于区别听力正常与否的取值标准不同而发生变化 ,用所得到的面积值来判断DPOAE的测试效能。结果 :1～ 6kHz从低到高各个频率对应的受试者特征曲线面积分别为 0 .6 77,0 .777,0 .818,0 .890 ,0 .873。结论 :DPOAE可以作为测试耳蜗性聋的一种频率特异性的客观方法。
OBJECTIVE: To assess the test efficacy of distortion-product otoacoustic emission (DPOAE) tests for the sensitivity, specificity and coincidence rate of cochlear deafness. Methods: DPOAE was measured in 86 ears with normal hearing and 98 ears with cochlear hearing loss. The amplitude of each frequency of 1 ~ 6kHz was compared with that of pure tone audiometry of corresponding audiometry. The sensitivities and specificities Value of the operating characteristics of the subject curve and calculate the area, the value of the area is not because of DPOAE used to distinguish between normal hearing or not, the value of the standard change, with the resulting area value to determine DPOAE test performance. Results: The characteristic curve areas corresponding to each frequency from 1 kHz to 6 kHz were 0.677, 0.777, 0.0818, 0.0890, and 0.873, respectively. Conclusion: DPOAE can be used as a frequency-specific and objective method of testing for cochlear deafness.