中耳疾病条件下鼓室导纳测试的理论分析  

An analogical model for tympanometry of the pathological human middle ear

作　　者：李牧耕 陈林 Li Mugeng;Chen Lin(Hefei National Laboratory for Physical Sciences at the Microscale,University of Science and Technology of China,Hefei 230027,China)

机构地区：[1]中国科学技术大学合肥微尺度物质科学国家研究中心,安徽合肥230027

出　　处：《中国科学技术大学学报》2020年第11期1431-1439,共9页JUSTC

基　　金：the National Natural Science Foundation of China(81970886).

摘　　要：鼓室导纳测试是指改变外耳道压力的同时观测中耳系统声导纳的变化.由于利用鼓室导纳测试评估中耳系统功能具有非侵入性和客观性等优点,它在临床耳鼻喉科中得到了广泛的应用.本工作通过适当调整中耳电路模型中的参数,模拟了鼓膜萎缩、耳硬化症等不同中耳疾病的鼓室导纳图,得到了与典型的临床图像相吻合的模拟图像.我们把最新的内耳电路模型与经典的中耳电路模型相结合,模拟了鼓膜萎缩的鼓室导纳图.将改进的中耳电路模型推广到鼓膜萎缩与耳硬化症等疾病可以进一步帮助人们理解鼓室导纳图形成的机制和促进它在临床中的应用.Tympanometry involves measuring the acoustic admittance of the middle ear system as a function of air pressure in the external auditory meatus.Since tympanogram provides a noninvasive and objective evaluation of middle ear functions,it has gained a wide application in the ear,nose,and throat(ENT)clinic.In this study,parameters of the middle ear circuit analog model were manipulated to mimic tympanograms of the ear with a flaccid eardrum and otosclerosis,which were consistent with those typically observed in the clinic.Also,the recently developed inner ear model was combined with the classical middle ear model to mimic tympanograms of the ear with a flaccid eardrum.Applying the circuit model to different middle ear diseases can provide a better understanding of the mechanism of tympanometry and promote its clinical utility.

关 键 词：中耳 鼓室导纳图 耳硬化症 中耳电声模型 

分 类 号：R764.5[医药卫生—耳鼻咽喉科]