Mapping the phase and amplitude of ossicular chain motion using sound-synchronous optical coherence vibrography
Posted on 2018-10-17 - 12:45
The sound-driven vibration of the tympanic membrane and ossicular chain of middle-ear bones is fundamental to hearing. Here we show that optical coherence tomography in phase synchrony with a sound stimulus is well suited for volumetric, vibrational imaging of the ossicles and tympanic membrane. This imaging tool - OCT vibrography - provides intuitive motion pictures of the ossicular chain and how they vary with frequency. Using the chinchilla ear as a model, we investigated the vibrational snapshots and phase delays of the manubrium, incus, and stapes over 100 Hz to 15 kHz. The vibrography images reveal a previously undescribed mode of motion of the chinchilla ossicles at high frequencies.
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Ramier, Antoine; Cheng, Jeffrey; Ravicz, Michael; Rosowski, John; Yun, Seok‐Hyun (2018). Mapping the phase and amplitude of ossicular chain motion using sound-synchronous optical coherence vibrography. Optica Publishing Group. Collection. https://doi.org/10.6084/m9.figshare.c.4150166.v1
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AUTHORS (5)
AR
Antoine Ramier
JC
Jeffrey Cheng
MR
Michael Ravicz
JR
John Rosowski
SY
Seok‐Hyun Yun