False Color Method for Retinal Oximetry  

作　　者：Erwin Michel Davila-Iniesta Santiago Guerrero-Gonzalez Jorge Santiago-Amaya Paola Castillo-Juarez Luis Nino-de-Rivera-Oyarzabal 

机构地区：[1]SEPI ESIME Culhuacan,Instituto Politecnico Nacional,Mexico City,Mexico [2]ENCB Santo Tomas,Instituto Politecnico Nacional,Mexico City,Mexico

出　　处：《Journal of Biomedical Science and Engineering》2019年第12期533-544,共12页生物医学工程（英文）

基　　金：CONACyT and Instituto Politecnico Nacional for financial support throughout the making of this work.

摘　　要：Oximetry is a method for measuring the oxygen saturation of haemoglobin in blood. Particularly, retinal oximetry based in the measurement of oxygen saturation in retinal vessels has acquired great interest to gather information on blood oxygenation from said vessels within inner and outer retina. Non-invasive spectrophotometric retinal oximetry has been studied for over five decades based on imaging spectroscopy. However, Optical Coherence Tomography (OCT) is an alternative to analyze the absorption difference between oxyhaemoglobin (HbO2) and deoxyhaemoglobin (Hb) in the retinal vessels and the choroidal structure. We propose in this paper an alternative process to manipulate conventional OCT images to evaluate changes in the relative haemoglobin oxygen saturation. Conventional OCT images from 570 nm and 600 nm in gray scale are converted to a corresponding color scale to be compared to the oxygenation information involved in the original gray scale OCT images.Oximetry is a method for measuring the oxygen saturation of haemoglobin in blood. Particularly, retinal oximetry based in the measurement of oxygen saturation in retinal vessels has acquired great interest to gather information on blood oxygenation from said vessels within inner and outer retina. Non-invasive spectrophotometric retinal oximetry has been studied for over five decades based on imaging spectroscopy. However, Optical Coherence Tomography (OCT) is an alternative to analyze the absorption difference between oxyhaemoglobin (HbO2) and deoxyhaemoglobin (Hb) in the retinal vessels and the choroidal structure. We propose in this paper an alternative process to manipulate conventional OCT images to evaluate changes in the relative haemoglobin oxygen saturation. Conventional OCT images from 570 nm and 600 nm in gray scale are converted to a corresponding color scale to be compared to the oxygenation information involved in the original gray scale OCT images.

关 键 词：Choroidal Structure False Color Method FILTERS FUNDUS OCT Image Oxygen Saturation OXIMETRY Retinal Vessels 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]