Fig. 2
From: Neurologic symptoms as a hallmark of glymphatic alteration in recovered patients with COVID-19
Between-group differences in MRI-based measures of the glymphatic system. Panel (A) shows the free water increase in COVID-19 with anosmia, while panel (B) shows the left side diffusion along the perivascular space (DTI-ALPS) index decrease in COVID-19 with cognitive symptoms than those without. Panel (C) shows the network of the COVID-19 infection (COVID), cognitive symptoms (Cog Sx), Anosmia, and MRI-based measures the glymphatic system. Note that COVID is linked to glymphatic system measures via Cog Sx and anosmia. Blue lines represent positive associations, and red lines represent negative associations. Abbreviation: s̅: without, c̅: with, pvs: perivascular space, alps_L: left Diffusivity Along the Perivascular Spaces, FW: extracellular fractional volume of free water. * p < 0.05