17 February 2012 Angiogram visualization and total velocity blood flow assessment based on intensity information analysis of OCT data
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Abstract
We propose two independent OCT data processing methods allowing visualization and analysis of the blood flow. These methods utilize variations in the OCT intensity images caused by flowing blood. The first method calculates standard deviation of intensity to generate retinal OCT angiograms. We present algorithm of this method and results of application for visualization of the microvasculature in the macular area of the human eye in vivo. The second method calculates cross power spectra of the volumetric intensity images to assess blood flow velocity in three dimensions. Validation of this method for OCT imaging was performed in a flow phantom.
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Daniel Ruminski, Daniel Ruminski, Danuta Bukowska, Danuta Bukowska, Iwona Gorczynska, Iwona Gorczynska, Maciej Szkulmowski, Maciej Szkulmowski, Maciej Wojtkowski, Maciej Wojtkowski, } "Angiogram visualization and total velocity blood flow assessment based on intensity information analysis of OCT data", Proc. SPIE 8213, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVI, 821306 (17 February 2012); doi: 10.1117/12.911573; https://doi.org/10.1117/12.911573
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