Clutter Rejection Filters for Doppler Optical Coherence Tomography
Introduction Doppler optical coherence tomography (DOCT) is a recently developed technology that can image blood flow with high special and temporal resolution. Technology description Researchers at the UW have developed techniques to improve the sensitivity of DOCT for real-time flow imaging by using cutter rejection filters. The filters reduce the signal scattering effect of moving blood cells and vessel walls. Business opportunity Results have shown that the accuracy in determining the small blood vessel size can be increased by ~30%, resulting in a more accurate estimation of micro blood flow. Furthermore, the new method can detect small blood vessels (~100 um diameter) which the conventional DOCT method fails. The method is easy to implement and computationally efficient. The clutter rejection filters can be potentially very useful for imaging blood flow in human tissue in vivo, especially for retinal blood flow imaging. Stage of development Initial data have been gathered and a working model made for this technology. Intellectual property position The technology is available for licensing. The UW is currently reviewing this technology for worldwide patent protection.
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