Development of akinetic swept-source OCT for middle ear imaging

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Optical coherence tomography (OCT) is an emerging optical imaging modality that can produce depth-resolved images of tissue. OCT is well-established in small-volume imaging applications in the retina and skin. My research is focused on its use for imaging the much larger volume of the middle ear. My proposal aims to develop techniques for fast real-time 2D imaging of the middle ear volume, Doppler OCT to enable functional imaging of the middle ear's response to sound and 3D imaging of the eardrum. Over the past five years my lab has built the first OCT system capable of obtaining images of the human middle ear at near real-time frame rates (3FPS). The current proposal will extend that work by moving from a time-domain OCT system to a new, akinetic swept-laser system that has become commercially available in the last year. This new laser offers many new capabilities that can improve middle ear imaging – true real time frame rates (>30FPS), a longer scanning range and exceptional phase stability for Doppler imaging and synthetic aperture imaging.