Global ETD Search
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Showing 1 to 6 of 6 for “"middle ear pressure"”.
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Middle ear pressure gain and cochlear input impedance in the chinchilla
Measurements of middle ear conducted sound pressure in the cochlear vestibule PV have been performed in only a few individuals from a few mammalian species. Simultaneous measurements of sound-induced stapes velocity VS are even more rare. We report simultaneous measurements of VS and PV in …
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Effects of ear-canal geometry and middle-ear pressure on wideband acoustic reflectance
… acoustic immittance (WAI) measurements of the middle ear are studied. The body of work presented here has three major components: (1) design of a hearing measurement probe and probe tip, (2) extraction of the effects of the residual ear canal (REC) and estimation of the WAI at the tympanic …
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Mittelohrdruckmessung im Langzeittest und Fahrstuhlprovokationstest bei Patienten mit Morbus Menière
There is some evidence that the inner ear disorder Menière’s disease is associated with a pathological middle ear ventilation or rather with a pathological middle ear pressure, which might be responsible for the pathogenesis of the disease. The aim of the present study was to investigate the …
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Quantifying tympanic membrane dynamics in otitis media using low coherence interferometry
Examining middle ear dynamics and mobility of the tympanic membrane (TM) is essential when diagnosing otitis media (OM), or a middle ear infection. OM is a widespread infectious disease in childhood, characterized by the accumulation of middle ear fluid, known as middle ear effusion (MEE). Loss of …
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Hearing Function in Obstructive Sleep Apnoea (OSA) patients and its impact with Continuous Positive Airway Pressure (CPAP)
… between obstructive sleep apnoea (OSA) and hearing dysfunction has not been comprehensively evaluated. The obstruction of the upper airway in OSA could lead to anatomical changes to the eustachian tube, thus impacting middle ear function. In addition, the recurrent decrease in oxygen …
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On Pressure Regulation of the Middle Ear
The middle ear (ME) pressure is regulated by gas diffusion over the ME mucosa and pressure equalizations via the Eustachian tube (ET). Disturbance in the regulation of ME pressure is believed to contribute to the development of chronic ear diseases. In this work subjects with chronic central …