Imaging the tympanic membrane oscillation ex vivo with Doppler optical coherence tomography during simulated Eustachian catarrh

Publikation: Beitrag in Buch/Konferenzbericht/Sammelband/GutachtenBeitrag in KonferenzbandBeigetragenBegutachtung

Abstract

Recently, optical coherence tomography (OCT) was utilized in multiple studies for structural and functional imaging of the middle ear and the tympanic membrane. Since Doppler OCT allows both, the spatially resolved measurement of the tympanic membrane oscillation and high-resolution imaging, it is regarded as a promising tool for future in vivo applications. In this study, Doppler OCT is utilized for the visualization of the tympanic membrane oscillation in temporal bones with simulated Eustachian catarrh, which was realized by generating a depression in the tympanic cavity. The transfer function, meaning the oscillation amplitude normalized to the applied sound pressure, is measured frequency resolved in the range from 0.5 kHz to 6 kHz and with a lateral spatial resolution of 0.4 mm. Typical oscillation patterns could be observed in case of ambient pressure in the tympanic cavity. Under depression the characteristic oscillation patterns were observed with widely congruent appearance but at higher frequencies.

Details

OriginalspracheEnglisch
TitelOptical Coherence Imaging Techniques and Imaging in Scattering Media
Redakteure/-innenMaciej Wojtkowski, Brett E. Bouma
Herausgeber (Verlag)SPIE - The international society for optics and photonics, Bellingham
ISBN (elektronisch)9781628417067
PublikationsstatusVeröffentlicht - 2015
Peer-Review-StatusJa

Publikationsreihe

ReiheProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Band9541
ISSN1605-7422

Konferenz

TitelOptical Coherence Imaging Techniques and Imaging in Scattering Media
Dauer21 - 23 Juni 2015
StadtMunich
LandDeutschland

Externe IDs

Scopus 84939646890
ORCID /0000-0002-3061-0171/work/142241307
ORCID /0000-0002-8160-3000/work/142248349
ORCID /0000-0003-0554-2178/work/142249855
ORCID /0009-0008-7642-8608/work/142255318
ORCID /0000-0003-2292-5533/work/142256594
ORCID /0000-0003-3894-1175/work/148603710
ORCID /0000-0002-5256-1497/work/153110542

Schlagworte

Schlagwörter

  • Doppler, Middle ear, Optical coherence tomography, Tympanic membrane oscillation