Table 1 Blood flow speed in the twelve ROIs selected in Figure 4. Data refer to the estimates of the flow speed |v| provided by the fit of the experimental CCFs and to the estimates |v|⁰ recovered directly from the peak time of the CCFs (equation (4); each estimate is the weighted average of the values obtained from the peak time of the CCFs computed for four column distances in the corresponding ROI). Apart from ROIs 1 and 10, where the approximate |v|⁰ could not be obtained due to its singularity (see eqs. S.37 and S.39 in Supplementary Note 2), the direct measurement of the flow speed from the CCFs peak time was possible in all the ROIs and led to a 0.96 average ratio |v|/|v|⁰

From: In Vivo Flow Mapping in Complex Vessel Networks by Single Image Correlation