Fig. 5.

Group-averaged sagittal maps of decay rates. Group-averaged maps are shown sagittal across midline. Note that the scale has been changed slightly from that in Fig. 4 to show contrast of additional structures. The most prominent changes are appreciated in the posterior aspect of the suprasellar cistern and spaces along major neurofluid routes (e.g., fourth ventricle, cerebral aqueduct, and cisterns) with general similarity across cortex and other subarachnoid spaces