Madsen AccuScreen OAE & ABR Screener User Manual
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Test details
DPOAE
Response at current test frequency.
Noise
Current noise level. Make sure the noise level is low.
Progress
Shows the time elapsed for the current test frequency. If a
Pass/Clear Response
for the current frequency is not achieved
the test frequency will time out. Max. time depends on
environmental noise conditions. If test conditions are optimal but
there is no response measured, then the frequency will time out
before the progress bar reaches the end.
Test duration - Regular DPOAE
Approximately 10 seconds on patients with normal hearing under quiet conditions, but highly dependent on test
con ditions in general.
5.3.4
DPOAE test results
When the test is completed, the test data is saved and the result is shown on the screen.
See Options in the test result screens
for a description of the buttons available.
The following
Pass/Clear Response
and
Refer/No Clear Response
definitions apply only to the default DPOAE protocol
for AccuScreen. See the AccuLink User Manual for customized protocols.
Pass/Clear Response
A single frequency
Pass/Clear Response
is determined by a statistical algorithm based
on weighted averaging, which ensures high-sensitivity detection. A
Pass/Clear
Response
result for a single frequency indicates that the patient has normal outer hair
cell function in the corresponding frequency region of the cochlea at the time of
testing.
The complete test is terminated successfully with a
Pass/Clear Response
if DPOAEs
could be registered for at least 3 out of 4 frequencies.
Note: Retro-cochlear hearing loss cannot be detected by DPOAE testing.