Toward optimizing the clinical utility of distortion product otoacoustic emission measurements
Toward optimizing the clinical utility of distortion product otoacoustic emission measurements
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DOI：
10.1121/1.416207
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发表时间：
1996-08-01
影响因子：
2.4
通讯作者：
Montoya, D
中科院分区：
文献类型：
--
作者：
Stover, L;Gorga, MP;Montoya, D
这项研究考察了初级刺激水平对失真产物耳声发射(DPOAE)测量区分听力正常和听力受损耳朵的能力的影响。在210名听力正常和听力受损的人身上，获得了9个f(2)频率的完整I/O功能，大致平均分配。采用临床决策理论评价DPOAE波幅和DPOAE阈值作为听力状况的诊断指标。中等水平的初级刺激比较低水平或较高水平的刺激能更好地区分正常和受损的反应。在给定初级水平，L(1)和L(2)，65和55dBSPL的情况下，通过DPOAE幅度区分两个群体在500 Hz以上的所有频率。DPOAE阈值表现同样良好，但噪声中的阈值模糊和较长的测试时间使其不太适合用于诊断。(C)1996年美国声学学会。
This study examined the effect of primary stimulus level on the ability of distortion product otoacoustic emission (DPOAE) measurements to separate normal-hearing from hearing-impaired ears. Complete I/O functions were obtained for nine f(2) frequencies on 210 people approximately evenly divided between normal hearing and hearing impaired. Clinical decision theory was used to assess both DPOAE amplitudes and DPOAE threshold as diagnostic indicators of hearing status. Moderate level primary stimuli elicited responses that separated normal from impaired better than either lower level or higher level stimuli. The two populations were differentiated for all frequencies above 500 Hz by DPOAE amplitude, given primary levels, L(1) and L(2), of 65 and 55 dB SPL. DPOAE threshold performed equally well, but threshold ambiguity in noise and longer testing times make it a less suitable DPOAE measure to use diagnostically. (C) 1996 Acoustical Society of America.