Otoacoustic Emissions: Overview | 合法醫療器材資訊網

2020年6月18日—Theprimarypurposeofotoacousticemission(OAE)testsistodeterminecochlearstatus,specificallyhaircellfunction....Theinformationcanbe ...

In general, SOAEs occur in only 40-50% of individuals who have normal hearing. For these adults, the range is about 30-60%; in neonates with normal hearing, the range is approximately 25-80%. SOAEs generally are not found in individuals with hearing thresholds worse than 30 dB HL. Therefore, the presence of SOAEs usually is considered a sign of cochlear health, but the absence of SOAEs is not necessarily a sign of abnormality.

When present in humans, SOAEs usually occur in the 1000- to 2000-Hz region; amplitudes are between -5 and 15 dB SPL. Some individuals have multifrequency SOAEs over a broader frequency range.

SOAEs typically are bilateral rather than unilateral. If unilateral, they are more likely to be present in the right rather than in the left ear. SOAEs occur more often in females than in males (across all ages).

Usually...