Figure 3

Connected perivascular spaces occupying periventricular regions. The portions of the perivascular network containing segments that traverse a three-voxel margin around the ventricles are 3D-rendered for Rat 3 (a–c) and Rat 4 (d–f). The left column is a rostral view of the coronal plane, the central column is a dorsal view of the transverse plane, and the right column is a left view of the sagittal plane. The needle track in each rat is labeled with a red star. Notable vessels are labeled (see Supplementary Table S1).