Spatial Distribution of Perivascular Spaces on MRI Is Associated with Disease Severity in Idiopathic Intracranial Hypertension.
BACKGROUND AND PURPOSE Glymphatic dysfunction, affecting cerebrospinal fluid transport and clearance, is increasingly implicated in idiopathic intracranial hypertension (IIH). Because perivascular spaces (PVS) reflect glymphatic activity, we evaluated whether their volume and spatial distribution could serve as imaging...