Changes in regional spinal cord perfusion at all 3 levels as absolute values. The upper line represents the proximal injections, the lower line—the distal injections at the last 2 time-points of the experiment. The microspheres injections at the first 2 time-points (both upper and lower lines) were performed via the left atrium. The results of the ANOVA and multiple comparisons using Tukey test are presented in Supplementary Material, Tables S1 and S2. CPB: cardiopulmonary bypass; CSF: cerebrospinal fluid; DP: distal perfusion.