GSi TYMPSTAR PRO, Руководство пользователя

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Sweep Quantity
The Sweep Quantity Test Options button is used to select the number of
tympanograms that may be collected on a single tympanogram test tab. When
the button is selected, a dropdown list is presented. A quantity of 1, 2 or 3 may be
selected.
Baseline Configuration
The baseline configuration button may be used to select the point at which ear
canal volume (Vea) is calculated. When the button is selected, a drop down list
is presented. When set to Auto, Vea for a 226 Hz probe tone tympanogram is
calculated at the positive tail and for a 1000 Hz probe tone tympanogram, Vea is
calculated from the negative tail. When Positive Tail is selected, Vea for all
probe tones is calculated at the positive tail. When Negative Tail is selected, Vea
for all probe tones is calculated at the negative tail.
Normative Data
The Normative Data Display Options check box is used to display a normative
data box on the tympanogram. Normative data curves are available for the Y
admittance component of the 226 Hz and 1000 Hz probe tones. The
tympanogram must be baseline adjusted in order to display the normative data
box for the 226 Hz probe tone. For the 1000 Hz probe tone, the normative data
will display when Baseline Configuration is set to Auto or Negative Tail. When
Baseline Configuration is set to Positive Tail, the normative data box will display
only when Baseline is off.
NOTE: Normative data references are below.
Margolis RH, Bass-Ringdahl S, Hanks WD, Holte L, Zapala DA. (2003).
Tympanometry in Newborn Infants—1 kHz Norms. Am JAudiol 14: 383-
392.
Roup C, Wiley TL, Safady SH, Stoppenbach DT. (1998). Tympanometric
Screening Norms for Adults. Am JAudiol 7: 55-60.
American-Speech-Language-Hearing Association. (1986). Principles of
Tympanometry. ASHA Monographs Number 24.
Peak Indicator
The Peak Indicator Display Options button determines if the tympanogram peak
is marked. When the button is checked, a vertical line is drawn through the peak
of the tympanogram to indicate the peak and corresponds to the value for peak
that is displayed in the results.
Tymp Measure
The Tymp Measure Options button determines if a measurement value is
displayed on the tympanogram results table. When the button is selected, a
dropdown list is presented where you may choose between Tymp Width,
Gradient or Off. The tympanometric width calculation is the width of the
tympanogram (in daPa) at 50% of the amplitude (peak) of the tympanogram.
The gradient calculation is defined as the change in the compliance from the peak
value to the value obtained at a pressure interval of 50 daPa on either side of the