Assessing Sensorineural Hearing Loss Using Various Transient-Evoked Otoacoustic Emission Stimulus Conditions
Assessing Sensorineural Hearing Loss Using Various Transient-Evoked Otoacoustic Emission Stimulus Conditions
An important clinical application of transient-evoked otoacoustic
emissions (TEOAEs) is to evaluate cochlear outer hair cell function
for the purpose of detecting sensorineural hearing loss (SNHL).
Double-evoked TEOAEs were measured using a chirp stimulus, in which
the stimuli had an extended frequency range compared to clinical tests.
The present study compared TEOAEs recorded using an unweighted
stimulus presented at either ambient pressure or tympanometric peak
pressure (TPP) in the ear canal and TEOAEs recorded using a powerweighted
stimulus at ambient pressure. The unweighted stimulus had
approximately constant incident pressure magnitude across frequency,
and the power-weighted stimulus had approximately constant absorbed
sound power across frequency. The objective of this study was to compare
TEOAEs from 0.79 to 8 kHz using these three stimulus conditions
in adults to assess test performance in classifying ears as having either
normal hearing or SNHL.
An important clinical application of transient-evoked otoacoustic
emissions (TEOAEs) is to evaluate cochlear outer hair cell function
for the purpose of detecting sensorineural hearing loss (SNHL).
Double-evoked TEOAEs were measured using a chirp stimulus, in which
the stimuli had an extended frequency range compared to clinical tests.
The present study compared TEOAEs recorded using an unweighted
stimulus presented at either ambient pressure or tympanometric peak
pressure (TPP) in the ear canal and TEOAEs recorded using a powerweighted
stimulus at ambient pressure. The unweighted stimulus had
approximately constant incident pressure magnitude across frequency,
and the power-weighted stimulus had approximately constant absorbed
sound power across frequency. The objective of this study was to compare
TEOAEs from 0.79 to 8 kHz using these three stimulus conditions
in adults to assess test performance in classifying ears as having either
normal hearing or SNHL.