Fig. 2.

Example of selected regions of interest on four slices. From left to right, low, low-middle, middle-high, and high slices. Colour code is red, green, light blue, dark blue, and yellow for arteries and sagittal sinus, CSF, WM, GMD and GMC, respectively. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)