Figure 2.

Scatter plots of pooled individual data and simple linear regressions of percentage changes in cerebral blood flow velocity (ΔCBFV%, A and B) and cerebral blood flow (ΔCBF%, C) (top row), and cerebrovascular resistance index (ΔCVRi%, D and E) and cerebrovascular resistance (ΔCVR%, F) (bottom row) relative to the baseline during steady-state changes in mean arterial pressure (ΔMAP%) measured at the middle cerebral artery (MCA, A and D) and internal carotid artery (ICA, B, C, E, and F) without adjustment of changes in end-tidal CO₂. The solid lines represent regression slopes and the dotted lines represent 95% confidence intervals.