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Multi Frequency Tympanometry
Physiologic Measures 1
12
Audiology
Graduate
02/26/2017

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Term
tympanometric measure of more than one component of immittance, usually conductance (Ga) & susceptance (Ba), at a single frequency
Definition
multi-component tympanometry
Term
Tympanometric measure of middle ear function with a conventional 226-Hz probe tone AND with one or more additional probe-tone frequencies
Definition
multi-frequency tympanometry
Term
Multi-Component AND Multi-Frequency Tympanometry:
-Can record multi-component tympanograms (Y, B, G) using different probe-tone frequencies ___, ___, and ___ Hz
-Diagnostic parameters: ___ frequency and tymp ___ or ___ pattern
Definition
226, 678, 1000; resonant; configuration; vanhuyse
Term
Freq at which outer & middle ear work most efficiently
Definition
resonant frequency
Term
Multi-Component Tympanometry Estimate Resonant Frequency (Res):
-ResY uses ___ freq where central notch appears on Y tymp
-Res B+ uses lowest freq where notch on B tymp __ susceptance at +200 daPa
-ResB- uses susceptance at the extreme ___ value
Definition
lowest; <; neg
Term
Simplest Way To Estimate RF Use Y Tymp:
-RF is lowest freq at which Y tymp first ___ ResY
-Disadvantages: cannot see __ and __ tymps separately and may mistakenly ID notch that was an ___
Definition
notches; B & G; artifact
Term
Use B Tymp to Estimate RF:
-Estimate RF is at central notch in B tymp :___ to or ___ the negative tail ResB- or positive tail ResB+
-Run B tymps at ___ frequencies
Definition
equal; below; different
Term
Vanhuyse Model:
-Assumes notched patterns in tymps occur due to interactions between ___ & ___
-Predicts __ patterns of susceptance (B) & conductance (G)
tympanograms
-Predicts shapes of __ and __ tymps at 678 Hz in normal ears & ears with pathology
-Model extended to ___ probe-tone freqs
Definition
reactance; resistance; 4; B & G; higher
Term
Vanhuyse Model: 4 Categories -1B1G -3B1G -3B3G -5B3G
Definition
-1 peak on B and 1 peak on G -2 peaks and 1 trough on B and 1 notch on G -2 peaks and 1 trough on both B and G -3 peaks and 2 troughs on B and 2 peaks and 1 trough on G
Term
Advantages of MF Tympanometry:
-Use ___ Hz tympanogram to determine tympanogram type: 1000 Hz detects otitis media with effusion (OME) in children __-__ months of age better than 226-Hz tymps
-Also test ___-Hz tympanogram to measure ECV
Definition
1000; 1-6; 226
Term
___ Hz tymps and ___-Hz tymps are used to test babies < 6 months
Definition
1000; 226
Term
In babies 6 months & younger:
-Use ___-Hz probe tone to get valid ECV measures
-Use 1000-Hz probe tone to determine ___ shape
Definition
226; tympanogram
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