Diagnosis and Characterization of Middle-ear and Cochlear Functions
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서지정보
ㆍ발행기관 : 한국청각언어재활학회
ㆍ수록지정보 : 청능재활 / 9권 / 2호
ㆍ저자명 : Rong Z. Gan
ㆍ저자명 : Rong Z. Gan
목차
INTRODUCTIONMATERIALS AND METHODS
RESULTS
DISCUSSIONS AND CONCLUSIONS
Acknowledgements
한국어 초록
Hearing impairment is one of the most common physical disabilities in the world. Conductive hearing loss resultsfrom dysfunction of the middle ear, and sensorineural hearing loss results from abnormalities within the cochlea orcentral nervous system. To improve the diagnosis of hearing loss and develop new technologies for restoration ofhearing, changes of the middle ear and cochlear functions in relation to ear structural disorders in hearing impairedears need to be characterized. This paper summarizes our biomedical engineering approach to characterize the middleear and cochlear functions in normal and diseased ears. With the experimental measurements in human temporalbones and animal models and the finite element (FE) modeling of the human ear, a better understanding ofbiomechanics of the ear for sound transmission is achieved. The acoustic-mechanical vibration and energytransmission through the middle ear in normal and diseased ears can be visualized and quantified in a 3-dimensionalFE model. Four novel model-derived “auditory test curves” named as the middle ear transfer function, energyabsorbance, admittance tympanogram, and tympanic membrane holography are generated with clinically relevantapplications.영어 초록
Hearing impairment is one of the most common physical disabilities in the world. Conductive hearing loss resultsfrom dysfunction of the middle ear, and sensorineural hearing loss results from abnormalities within the cochlea or
central nervous system. To improve the diagnosis of hearing loss and develop new technologies for restoration of
hearing, changes of the middle ear and cochlear functions in relation to ear structural disorders in hearing impaired
ears need to be characterized. This paper summarizes our biomedical engineering approach to characterize the middle
ear and cochlear functions in normal and diseased ears. With the experimental measurements in human temporal
bones and animal models and the finite element (FE) modeling of the human ear, a better understanding of
biomechanics of the ear for sound transmission is achieved. The acoustic-mechanical vibration and energy
transmission through the middle ear in normal and diseased ears can be visualized and quantified in a 3-dimensional
FE model. Four novel model-derived “auditory test curves” named as the middle ear transfer function, energy
absorbance, admittance tympanogram, and tympanic membrane holography are generated with clinically relevant
applications.