Patent ID: 6148226
Filing Date: 2000-11-14
Classification: G01N

Abstract:
A method of differentiation between scattering and absorption in a scattering medium having a scattering property and an absorption property, comprising the steps of:measuring time-dependent diffusion curves through a thick scattering medium for a set of sample positions with respect to a laser beam and point detection;calculating time-dependent quantities, based on said diffusion curves, representing variations of said diffusion curves from sample positions, from one sample position to a next sample position;providing an empirical model describing said quantities;performing a curve fitting process to obtain a first parameter relating to a variation of said scattering property of a local heterogeneity and a second parameter relating to a variation of said absorption property of said local heterogeneity; said first and second parameters being defined by said empirical model; andplotting spatial distribution of said first and second parameters resulting from said curve fitting process.