Figure 6.

Quantification of the effect of cerebral pulsation on brain viscoelasticity. (a) Linear correlation of heart rates estimated from |G*| and CAP paradigm in 1/min. The gray areas indicate confidence intervals. (b) Total change in MRE parameters from cerebral diastole to systole in all volunteers; left: |G*|, right: ϕ. (c) Relative changes in cerebral |G*| induced by arterial pulsation over age. The black line is the linear regression line and the gray area indicates the confidence range based on Pearson’s linear correlation.