Light scattering properties of biotissue versus equivalent particle size distribution

An equivalent particle size distribution function n(tau) is applied to desc ribe optical scattering property of tissue. Under the Fraunhofer diffractio n approximation, both the scattering coefficient mu(s) and the scattering p hase function S(theta) are educible from n(tau). Moreover, such a scheme pr ovides a new feasible method based on the light scattering techniques for p article size analysis to measure the optical properties of tissue. Experime ntal results of the whole human blood and a thin porcine muscle sample are also provided and so is a calculation resulting from an optical phantom of tissue. The light scattering equivalency between the practical tissue and t he corresponding equivalent particles has been verified.