Applications of Optical Coherence Tomography in Clinical Otology (2023 AMW)
2023 AAO-HNSF Annual Meeting & OTO Experience
The purpose of this session is to introduce participants to middle ear optical coherence tomography (ME-OCT) imaging technology. ME-OCT is an emerging otological imaging modality that provides radiation-free, non-contact, real-time, in office structural and functional visualization of the middle ear through the intact tympanic membrane (TM) with high resolution and excellent hard and soft tissue contrast. Like ultrasound, ME-OCT generates depth-resolved images, but it does so using light instead of sound. In addition to imaging, ME-OCT also enables spatially-resolved Doppler vibrometry measurements of middle ear structures that can provide insight into the etiology of conductive hearing loss. Our group has developed a turnkey, handheld ME-OCT system in an otoscopic form factor for clinical imaging. The system, which is capable of real-time 2D, Doppler and 4D volumetric imaging will be demonstrated live during the session. We will also discuss the results of studies in patients, healthy controls and cadaveric temporal bones that explore the technology’s utility in addressing clinical problems in otology. The structure of the symposium is as follows:- An introduction to ME-OCT technology, principles of operation, advantages and limitations compared to standard diagnostics- An overview of our custom clinical ME-OCT system including operating principles and major imaging modes- A live demonstration of the system and its capabilities (2D imaging, 4D imaging, Doppler vibrometry)- The application of ME-OCT imaging and vibrometry in the primary diagnosis of conductive hearing loss and otosclerosis- The application of ME-OCT imaging and vibrometry for assessment of the post-surgical ear - Results of explorations into potential clinical applications of ME-OCT in otology including for cholesteatoma, chronic ear, middle ear trauma and surgical guidance- Variance-based imaging for detection of micromotion and for angiographic imaging- Applications of multi-modal fusion of ME-OCT and computed tomography (CT) images.
Credits
CME:1.0, MOC:1.0