Numerical simulation of light propagation and scattering in turbid biological media

This article considers the processes of light propagation and scattering in biological tissues. The results obtained made it possible to estimate basi c signal parameters and their dependence on various optical parameters with respect to the laser Doppler flowmeter and laser Doppler microscope. We al so developed a new method to determine the indicatrix asymmetry of single a nd multiple light scattering by a suspension of oriented spheroidal particl es that simulated erythrocytes in a shear flow. It was found that the angul ar dependence of the asymmetry index provides information on the shape and orientation of particles. In addition, we obtained single scattering indica trices, which may improve the accuracy of computer simulation of light scat tering by blood.