Titre
Dynamic X-ray Microtomography vs. Laser-Doppler Vibrometry: A Comparative Study
Type
autre
Institution
UNIL/CHUV/Unisanté + institutions partenaires
Auteur(s)
Ivanovic, Aleksandra
Auteure/Auteur
Cheng, Jeffrey Tao
Auteure/Auteur
Schmeltz, Margaux
Auteure/Auteur
Schlepütz, Christian M.
Auteure/Auteur
Bonnin, Anne
Auteure/Auteur
Anschuetz, Lukas
Auteure/Auteur
Liens vers les unités
Date de publication
2024-08-08
Langue
anglais
Résumé
There are challenges in understanding the biomechanics of the human middle ear, and established methods for studying this system show significant limitations. In this study, we evaluate a novel dynamic imaging technique based on synchrotron X-ray microtomography designed to assess the biomechanical properties of the human middle ear by comparing it to laser-Doppler vibrometry (LDV).
We examined three fresh-frozen temporal bones (TB) using dynamic synchrotron-based X-ray microtomography for 256 Hz and 512 Hz, stimulated at 110 dB and 120 dB SPL. In addition, we performed measurements on these TBs using 1D LDV, a well-established method.
The normalized displacement values (μm/Pa) at the umbo and the posterior crus of the stapes are consistent or within 5-10 dB differences between all LDV and dynamic microtomography measurements and previously reported literature references. In general, the overall behavior is similar between the two measurement techniques.
In conclusion, our results demonstrate the suitability of dynamic synchrotron-based X-ray microtomography in studying the middle ear's biomechanics. However, this study shows that better standardization regarding acoustic stimulation and measurement points is needed to better compare the two measurement techniques.
We examined three fresh-frozen temporal bones (TB) using dynamic synchrotron-based X-ray microtomography for 256 Hz and 512 Hz, stimulated at 110 dB and 120 dB SPL. In addition, we performed measurements on these TBs using 1D LDV, a well-established method.
The normalized displacement values (μm/Pa) at the umbo and the posterior crus of the stapes are consistent or within 5-10 dB differences between all LDV and dynamic microtomography measurements and previously reported literature references. In general, the overall behavior is similar between the two measurement techniques.
In conclusion, our results demonstrate the suitability of dynamic synchrotron-based X-ray microtomography in studying the middle ear's biomechanics. However, this study shows that better standardization regarding acoustic stimulation and measurement points is needed to better compare the two measurement techniques.
PID Serval
serval:BIB_68AF951B8E7A
PMID
Date de création
2024-09-03T15:05:04.871Z
Date de création dans IRIS
2025-05-20T21:24:53Z