RT Journal Article
T1 Measuring absorbed energy in the human auditory system using finite element models: A comparison with experimental results
A1 Castro Egler, Cristina
A1 García-González, Antonio Luis
A1 Aguilera-García, José Antonio
A1 Moreno Cerezo, Pablo
A1 López-Crespo, Pablo
A1 González-Herrera, Antonio
K1 Oído
AB BACKGROUND: There are different ways to analyze energy absorbance (EA) in the human auditory system. In previousresearch, we developed a complete finite element model (FEM) of the human auditory system.OBJECTIVE: In this current work, the external auditory canal (EAC), middle ear, and inner ear (spiral cochlea, vestibule, andsemi-circular canals) were modelled based on human temporal bone histological sections.METHODS: Multiple acoustic, structure, and fluid-coupled analyses were conducted using the FEM to perform harmonicanalyses in the 0.1–10 kHz range. Once the FEM had been validated with published experimental data, its numerical results wereused to calculate the EA or energy reflected (ER) by the tympanic membrane. This EA was also measured in clinical audiologytests which were used as a diagnostic parameter.RESULTS: A mathematical approach was developed to calculate the EA and ER, with numerical and experimental resultsshowing adequate correlation up to 1 kHz. Another published FEM had adapted its boundary conditions to replicate experimentalresults. Here, we recalculated those numerical results by applying the natural boundary conditions of human hearing and foundthat the results almost totally agreed with our FEM.CONCLUSION: This boundary problem is frequent and problematic in experimental hearing test protocols: the more invasivethey are, the more the results are affected. One of the main objectives of using FEMs is to explore how the experimental testconditions influence the results. Further work will still be required to uncover the relationship between middle ear structures andEA to clarify how to best use FEMs. Moreover, the FEM boundary conditions must be more representative in future work toensure their adequate interpretation
PB Sage Journals
YR 2024
FD 2024-01-01
LK https://hdl.handle.net/10630/36049
UL https://hdl.handle.net/10630/36049
LA eng
NO Castro-Egler C, Garcia-Gonzalez A, Aguilera JA, Cerezo PM, Lopez-Crespo P, González-Herrera A. Measuring absorbed energy in the human auditory system using finite element models: A comparison with experimental results. Technology and Health Care. 2024;32(1_suppl):3-15. doi:10.3233/THC-248001
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 22 ene 2026