Exemplos de uso de Probe tone em Inglês e suas traduções para o Português
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In the tympanometrical evaluation, 225 Hz probe tone signals were used.
For this probe tone, the normal range is between 0.3 and 1.0 mL 35-37.
For infants over nine months old, the authors suggest the use of low frequency probe tone.
With a 678 Hz probe tone, the mean Ecv approached the values that were found in the literature 19.
Figure 1 represents the tympanometric occurrence curve by probe tone.
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We also analyzed which probe tone was closer to the TOAE results, as shown in Chart 1.
All underwent reflexes using ipsilateral and contralateral probe tone of 226 and 1000 Hz.
Results indicated that the 1000 Hz probe tone is the one most recommended for the assessment of babies up to 3 months of age.
Nowadays, the regulation regarding data on ASRT with the 1,000 Hz probe tone is lacking.
Similarly, for the higher frequency probe tone, there was a predominance of type A curve, followed, however, by Flat curve.
Tympanometry and ASRT were done with an Interacoustics Az7r device probe tone at 220Hz.
Showed that tympanometry with a probe tone frequency of 1,000 Hz is the most sensitive method for detecting middle ear changes in neonates.
It is therefore necessary to also apply a 1000-Hz probe tone to acquire more reliable results.
The intensity of probe tone was 85 dB SPL to 226 and 678 Hz, and 75 dB SPL at 1,000 Hz, following the specifications of the equipment manual 17.
OBJECTIVE: To describe and analyze interpretations of measurements performed on tympanometry in neonates with probe tone of 226 and 1000 Hz.
A double-peaked tympanogram is expected when the probe tone frequency coincides with the resonant frequency of the ear tested 1,2.
It is worth noting that in this study we found a lower prevalence of conduction disorders 1.42%, proven by otoscopy andtympanometry with the 1000 hz probe tone.
Acoustic immittance using a 1000-Hz probe tone produces better results than using 226- and 678-Hz probe tones. .
Another goal of the present study was to check the relationship between the multiple frequency tympanometry and the TEOAE in order to analyze which probe tone had the best correlation.
We observed a higher incidence of single peak with 1000 Hz probe tone and double peak with a tone of 226Hz in both ears p< 0.001.
After sealing the canal, the 226- and 1000-Hz tympanograms were obtained,with two measurements being taken in each ear for each probe tone to confirm the results.
For the measure of the acoustic impedance and auditory reflection,it was used probe tone of 226 Hz and immittanciometer AZ26, Interacoustic® brand, with TDH 39P headphones.
The 1000 Hz probe tone was considered efficient to be used in NHS Newborn Hearing Screening, in order to detect possible middle ear disorders in newborns, which may reduce the number of children with audiological diagnosis delayed by chronic otitis media.
Title: correlation between otoacoustic emissions and tympanometry 226 hz probe tone and 1000 hz probe tone results in newborn babies from a neonatal unit.
The 226Hz probe tone has been suggested in the literature as the frequency of choice to assess infants up to four months of age, because such probe would be less affected by maturity differences and also because tympanometry patterns are better interpreted in this frequency when compared to the higher frequencies.
Acoustic immitance measures included tympanometry with 1 kHz probe tone, carried out using the middle ear analyzer Interacoustics®, model AT 235.
Controversial results regarding the use of the 226 Hz probe tone used only to study tympanometric changes in newborns and babies younger than six months of age have been shown in various studies.
In both participating institutions, the acoustic immittance was measured by means of a tympanometry with a 1-kHz probe tone released by a middle ear analyzer Interacoustics, model 235-H.
These studies concluded that the high frequency probe tone has greater sensitivity to detect ME alterations in neonates and infants, and should, therefore, be the frequency of choice for this population.
Acoustic immittance measurements were performed using the AT 235H Interacoustics® Middle Ear Analyzer andconsisted of tympanometry with a probe tone of 226 Hz and ipsilateral and contralateral acoustic reflexes research.