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골전도와 기전도에서 메니에르 질병이 청력에 미치는 영향
오윤경(Yoonkyung Oh),최종운(Jongwun Choi),김남근(Namkeun Kim) 대한기계학회 2017 대한기계학회 춘추학술대회 Vol.2017 No.11
In order to investigate the effect of the Meniere disease on a hearing sensitivity caused by endolympatic hydrops, we developed a three dimensional finite element model of the cochlea. The model has a tapered box shape, and tonotopical property of the basilar membrane was well described in the model. Fro the validation of the model, the air-conducted (AC) sound in a cochlea was simulated. Results show that the BM velocity was decreased at low frequency ranges in AC whereas the velocity was not changed at high frequency ranges, which were consistent with the previously published data. Furthermore, the effect of the Meniere disease on a bone-conducted (BC) hearing pathway was investigated through the simulation. Results show that there were insignificant effects on a BC hearing from the Meniere disease regardless of the input frequencies.
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3차원 유한요소모델을 이용한 이경화증 수술이 전도성 난청에 끼치는 영향에 대한 연구
임종우(Jongwoo Lim),이수민(Soomin Lee),김남근(Namkeun Kim) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11
Otosclerosis is a disease causing impairment of air conduction (AC) hearing perception due to stiffening of stapes annular ligament. Clinically, either stapedotomy or stapedectomy is suggested as a remedy to overcome the conductive hearing loss (CHL) caused by otosclerosis. It is generally accepted that stapedectomy improves the CHL more than stapedotomy, but stapedectomy is considered as more dangerous operation method than stapedotomy because the surgical site in the stapedectomy is much larger than stapedotomy. In this study, the effect of closing material on CHL was studied using three-dimensional-finite element model. This study will be helpful in selecting an appropriate closing material in stapedectomy operation.
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