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Using Monte Carlo and Iterative Techniques to Determine Tissue Oxygen Saturation
专利权人:
发明人:
Kate LeeAnn Bechtel,H. Keith Nishihara
申请号:
US15820368
公开号:
US20180092580A1
申请日:
2017.11.21
申请国别(地区):
US
年份:
2018
代理人:
摘要:
A method for determining oxygen saturation includes emitting light from sources into tissue detecting the light by detectors subsequent to reflection and generating reflectance data based on detecting the light. The method includes determining a first subset of simulated reflectance curves from a set of simulated reflectance curves stored in a tissue oximetry device for a coarse grid and fitting the reflectance data points to the first subset of simulated reflectance curves to determine a closest fitting one of the simulated reflectance curves. The method includes determining a second subset of simulated reflectance curves for a fine grid based on the closest fitting one of the simulated reflectance curves determining a peak of absorption and reflection coefficients from the fine grid and determining an absorption and a reflectance coefficient for the reflectance data points by performing a weighted average of the absorption coefficients and reflection coefficients from the peak.
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