Numerical analysis of the effects of canal wall-up and canal wall-down mastoidectomy on the sound transmission characteristics of human ears

• Autorzy: Liu Peihan , Liu Wen , Zhao Yu , Yan Shanshan , Jiang Wen , Liu Houguang , Wan Jin

Identyfikatory

DOI

10.37190/ABB-02297-2023-02

• Języki publikacji: EN

Abstrakty

EN

The aim of this work was to study the effect of canal wall-up (CWU) and canal wall-down (CWD) and mastoid obliteration in conjunction with CWD (CWD-MO) mastoidectomy on the sound transmission characteristics of the human ear. Methods: Three mastoidectomy surgical methods, CWU, CWD and CWD-MO, were simulated on the freshly dissected cadaver heads. Then, the finite element (FE) models corresponding to these surgical methods were established by micro-computed tomography (Micro-CT) and reverse engineering technology, and the accuracy of the models was verified. Finally, the FE Models were used to analyze the effects of different surgical methods on the sound transmission characteristics of the human ear. Results: For CWU, since the integrity of the outer wall of the ear canal is ensured, the sound pressure (SP) gain of the ear canal and the stapes footplate displacement (FPD) gain after this operation are close to normal values. For CWD, due to severe damage to the outer wall of the ear canal, a negative gain of the ear canal SP occurs in the high-frequency range, and the resonance frequency is significantly reduced. For CWD-MO, the frequency range of SP negative gain in the ear canal is reduced due to the addition of fillers in the ear canal to reduce the degree of damage, and the resonance frequency is increased compared to CWD. Conclusions: The impact of three types of mastoidectomy, including CWU, CWD, and CWDMO, on the sound transmission characteristics of the human ear after surgery is relatively small.

Słowa kluczowe

EN

canal wall-up; canal wall-down; sound pressure gain; stapes footplate displacement gain; finite element

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2023
• Tom: Vol. 25, no. 2
• Strony: 133--145
• Opis fizyczny: Bibliogr. 40 poz., rys., wykr.

Twórcy

autor

Liu Peihan

• School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou, China

autor

Liu Wen

• Xuzhou Third People’s Hospital, Xuzhou, China
• Department of Otolaryngology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China

autor

Zhao Yu

• School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou, China

autor

Yan Shanshan

• Department of Otolaryngology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
• Graduate School of Xuzhou Medical University, Xuzhou, China

autor

Jiang Wen

• Artificial Ear Laboratory of Jiangsu Province, Xuzhou, China
• Department of Otolaryngology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China

autor

Liu Houguang

• School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou, China

autor

Wan Jin

• Xuzhou Third People’s Hospital, Xuzhou, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).