MRI-Perivascular Spaces in Chronic and Episodic Migraine Disorder
This retrospective study of 90 participants reveals that, contrary to the initial hypothesis linking migraine frequency to increased perivascular space (PVS) burden, migraineurs actually exhibited significantly lower PVS volumes and cluster counts compared to healthy controls, with the most pronounced reductions observed in individuals with aura, suggesting that aura rather than the disorder itself drives these glymphatic system alterations.