Figure 2
From: Quantitative blood flow velocity imaging using laser speckle flowmetry
Multiple scattering scaling factor.
Scaling factor Α(N) = α/α1 = τc,1/τc, is calculated using our model for autocorrelation g1(τ) based on Mie-Percus-Yevick scattering in human blood for Hct = 30% (upper solid orange line) and Hct = 45% (lower solid red line). As a practical guideline, A(N) from our MPY model can approximately be fitted by A(N) = 1.1 N(2/3), which gives an error <10% for the range plotted for both hematocrits. Dashed lines represent Α(N) for Lorentzian (grey) and Gaussian (black) models for g1(τ). All scaling factors are calculated using a normal distribution for the number of scattering events in the vessel pN(n), with mean N and variance determined by the Percus-Yevick pair correlation function (Supplementary equation 6).
