Fig. 2.

Relative error (in percent) resulting from using the $MO/S{U}_{n=1}$ model (blue) and its simplified version $MO/S{U}_{n=1,simp}$ (orange). The form of $g_1(\tau )$ and the ${\tau }_c$ value for the true models were defined according to the imaged vessel’s size as described in the Methods section. Other parameters were set as follows: $\rho$=1, $\beta$=1, $T$=5 ms. We see an error upwards of 200%, which is caused by using the wrong form of the field correlation function to interpret speckle contrast in the parenchyma. In A-C, the identity line is shown in dashed gray.