Numerical analysis of the effect of middle-ear effusion on the sound transmission and energy absorbance of the human ear
Peihan Liu1
Hang Li2
Wen Jiang3
Wen Liu4
Yuehua Qiao3
Houguang Liu1
1.School of Mechatronic Engineering,China University of Mining and Technology,Xuzhou,221116,China2.Department of Otolaryngology,The Third People's Hospital of Dalian,Dalian,116033,China3.The First Clinical Medical School,Xuzhou Medical University,Xuzhou,221000,China;Department of Otolaryngology,Affiliated Hospital of Xuzhou Medical University,Xuzhou,221006,China;Artificial Ear Laboratory of Jiangsu Province,Xuzhou,221000,China4.The First Clinical Medical School,Xuzhou Medical University,Xuzhou,221000,China;Department of Otolaryngology,Affiliated Hospital of Xuzhou Medical University,Xuzhou,221006,China
摘要：This study aims to investigate the impact of middle ear effusion(MEE)on sound transmission in the human ear and its potential diagnostic signifi-cance.Firstly,the material properties of specific structures were adjusted based on the existing human ear finite element(FE)model,and the accuracy of the model was validated using experimental data.Secondly,six FE models were developed to simulate varying degrees of MEE by systematically altering the material properties of the middle ear cavity(MEC)at different anatomical locations.Finally,the effects of these six FE models,representing varying degrees of MEE,on sound transmission characteristics and energy absorption(EA)rate in the human ear were systematically analyzed.When the degree of MEE is less than 50％of the MEC volume,its impact on the sound transmission characteristics of the human ear remains mini-mal,resulting in an estimated hearing loss of approximately 3 dB,with EA rate remaining close to normal levels.Once the effusion exceeds 50％of the MEC volume,a significant deterioration in acoustic transmission is observed,accompanied by a flattening of the EA curve and a drop in EA rates to below 20％.When the effusion completely fills the MEC,the maximum hearing loss reaches 46.47 dB,and the EA rate approaches zero across the entire frequency range.These findings provide theoretical insights into the biomechanical effects of MEE on human auditory transmission and offer a reference for clinical diagnosis and evaluation.
机标关键词：analysishumanenergysoundabsorbanceeffecteffusionmiddle-ear
论文发表日期：2025-07-30
在线出版日期：2025-11-07（本平台首次上网日期，不代表文献的发表时间）
页数：9( 176-184 )
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