Results 171 to 180 of about 6,014 (201)
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Multifrequency Tympanometry in Chinchillas
International Journal of Audiology, 1995Multifrequency tympanometry (MFT), using probe frequencies ranging from 226-2,000 Hz, was performed on normal chinchillas to obtain normative data against which to compare results from animals with middle ear pathology. A series of validating experiments was conducted to determine the effects of anatomical alterations of the middle ear on MFT.
R H, Margolis +3 more
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Tympanometry and Acoustic Impedance
Acta Oto-Laryngologica, 1977In recordings of the acoustic impedance of the middle ear (tympanometry) the change in air pressure in the ear canal will mostly influence the capacitive component of the acoustic impedance. By choosing a probe tone frequency close to the resonance frequency of the middle ear, characteristic tympanometric patterns can be demonstrated in certain middle ...
G, Lidén +3 more
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Tympanometry in Normal Neonates
Journal of Speech, Language, and Hearing Research, 1979Acoustic conductance and susceptance tympanograms were obtained at 220 and 660 Hz in 34 neonates. The neonates were categorized into three age groups (8-24 hours, 24-60 hours, and 60-96 hours). Single-peaked, double-peaked, and monotoni-cally increasing tympanograms were found.
M Z, Himelfarb, G R, Popelka, E, Shanon
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Pediatrics In Review, 1981
Tympanometry as a test of otologic status has the following attributes, uses, and advantages: (1) can be carried out simply, rapidly, and atraumatically, by appropriately trained nonprofessionals; (2) does not require, as does conventional audiometry, a sound-free environment; (3) is not influenced by the amount of cerumen ordinarily present in the ...
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Tympanometry as a test of otologic status has the following attributes, uses, and advantages: (1) can be carried out simply, rapidly, and atraumatically, by appropriately trained nonprofessionals; (2) does not require, as does conventional audiometry, a sound-free environment; (3) is not influenced by the amount of cerumen ordinarily present in the ...
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International Journal of Audiology, 1983
The 'fistula test' is performed when an abnormal opening between the vestibule and the middle ear cavity is suspected. The fistula is usually seen after stapedectomy, but may also occur after trauma to a normal ear when the round window membrane may rupture.
J R, Causse, J B, Causse, J, Bel
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The 'fistula test' is performed when an abnormal opening between the vestibule and the middle ear cavity is suspected. The fistula is usually seen after stapedectomy, but may also occur after trauma to a normal ear when the round window membrane may rupture.
J R, Causse, J B, Causse, J, Bel
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Ugeskrift for laeger, 2000
A flat tympanogram predicts a middle ear effusion in about 90% of cases. This paper describes how to perform tympanometry, some common problems when doing it and how to classify the curves in normal (type A), middle ear effusion (type B) or negative pressure (type C). The theoretical background of impedance audiometry is outlined. The stapedius reflex,
J, Lous, J G, Hansen, J U, Felding
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A flat tympanogram predicts a middle ear effusion in about 90% of cases. This paper describes how to perform tympanometry, some common problems when doing it and how to classify the curves in normal (type A), middle ear effusion (type B) or negative pressure (type C). The theoretical background of impedance audiometry is outlined. The stapedius reflex,
J, Lous, J G, Hansen, J U, Felding
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Tympanometry: Application and Interpretation
Annals of Otology, Rhinology & Laryngology, 1976The poor relationship between hearing loss and ear disease minimizes the effectiveness of audiometry as a technique for the identification of middle ear disorders. Tympanometry has been shown to be a highly sensitive technique for the identification of and differentiation between middle ear disorders.
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Tympanometry in Human Temporal Bones
Archives of Otolaryngology - Head and Neck Surgery, 1970Tympanometry is a technique used to assess the mobility and condition of the tympanic membrane and middle ear during variation of air pressure in the ear canal. The technique was applied to a series of 21 fresh human temporal bones, 11 of which were judged to be normal.
J L, Peterson, G, Lidén
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Tympanometry Revealing Middle Ear Pathology
Annals of Otology, Rhinology & Laryngology, 1976In order to evaluate the usefulness of impedance audiometry as a screening method for school children, two different pilot studies were performed. The results indicated that impedance audiometry (tympanometry and stapedius reflex test) was more efficient than otoscopy and pure tone screening in the detection of ears with secretory otitis media (SOM ...
U, Renvall, J, Holmquist
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American family physician, 2004
Tympanometry provides useful quantitative information about the presence of fluid in the middle ear, mobility of the middle ear system, and ear canal volume. Its use has been recommended in conjunction with more qualitative information (e.g., history, appearance, and mobility of the tympanic membrane) in the evaluation of otitis media with effusion and
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Tympanometry provides useful quantitative information about the presence of fluid in the middle ear, mobility of the middle ear system, and ear canal volume. Its use has been recommended in conjunction with more qualitative information (e.g., history, appearance, and mobility of the tympanic membrane) in the evaluation of otitis media with effusion and
openaire +1 more source