Fig. 3From: Hyperdynamic CSF motion profiles found in idiopathic normal pressure hydrocephalus and Alzheimer’s disease assessed by fluid mechanics derived from magnetic resonance imagesPressure gradient color mapping of the volunteer by 3D-PC at 4 stages of the cardiac cycle. The intensity of the pressure gradient was indicated using a color scale. The color-coded CSF pressure gradient were then superimposed onto T2-weighted images of the stationary tissues. Red circle indicates Sylvian aqueductBack to article page