METHODS OF MEASURING TOTAL RETINAL BLOOD FLOW USING EN FACE DOPPLER OCT

摘要

Methods of performing en face Doppler total retinal blood flow measurement are disclosed. The methods involve obtaining a set of structural OCT scans; calculating a noise-reduced set of Doppler phase shift images by dividing the full spectrum OCT fringe data into a set of narrower filtered frequency bands for phase shift calculation; removing bulk motion along a depth direction; detecting retinal vessels in the set of images; applying a phase unwrapping algorithm to the images; classifying the vessels as veins and arteries; and calculating total retinal blood flow based on that classification.