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C. Results table
The results table shows the results related to the currently selected curve. When you click on a row of results, the
related curve is highlighted in the tympanometry graph area.
To replace a single measurement, delete a curve and adjust the measurement selections to redo the single meas-
urement.
•
Probe
TPP
•
(Tympanometric Peak Pressure)
•
ECV
(Equivalent Ear Canal Volume
SA
•
(Static Admittance), or
•
TW/Ratio
Type
•
(Jerger types A, As, Ad, B, C, D and E denote the shape of the 226 Hz curve). You can set the type to be
determined automatically, and you can subsequently change it manually, if necessary.
Editing results
To edit the measurement results in
the results table, right-click on the
measurement row you wish to
edit, and select from the menu.
12.9
Admittance (Y) Recorder
Admittance (Y) Recorder is a functionality where you can record the admittance either without stimulus or with any
external stimulus. The functionality can be useful both for investigative purposes and troubleshooting in conjunction with
unstable acoustic reflex traces.
Admittance (Y) Recorder is useful for several purposes such as:
•
Reflex testing of the stapedius muscle
–
external electrical stimulation with cochlear implants
–
tactile stimulation
•
Patulous Eustachian tube testing
Admittance variations in synchrony with the patient's breathing cycle resulting from insufficient closing of the Eus-
tachian tube
•
Vascular artefacts
Admittance variations in synchrony with the patient's pulse. This phenomenon can be observed in some cases
involving superficial blood vessels that influence the probe or the tympanic membrane. The condition is sometimes
observed as a pulsatile objective tinnitus. It may indicate the presence of a Glomus tumor.
Before testing
1. Do as described in
2. Inform the patient about the high stimulus levels in the test.
3. Ask the patient to sit very still and quiet during the test, without moving head or jaw.
Otometrics - MADSEN Zodiac
(the probe tone in Hz)
SC
(Static Compliance) when volume equivalent units are used
(Tympanometric Width/Tympanometric Ratio). Describes the steepness of the curve.
•
•
•
Preparing for testing ► 36
12 Testing with Zodiac Diagnostic or Clinical - PC-based
Change Type
Swap Ear...
Delete Curve
.
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