Fig 3. PQ plots of pre-operative and post-operative NPH patients compared to healthy controls.

The effect of shunting in NPH patients. Trajectories of six brain ROIs in the p:q plane, illustrating their evolution from control (HEALTHY), to hydrocephalus pre-shunting (PRE) and two weeks after shunting (POST). A round trip would represent that the ROIs have completed a return journey to normal diffusion levels.