Fig. 5.

Imaging of cerebral small vessel disease. a Transverse T2 image showing enlarged perivascular spaces, the vessels travelling perpendicular to the page. b Transverse T2 image showing perivascular space enlargement in the plane of the image, appearing as parallel streaks. c Transverse susceptibility weighted image of the basal ganglia and thalamus showing several microhemorrhages. d FLAIR image showing a right thalamic lacune with a hypointense core and a slightly hyperintense rim. e FLAIR image showing periventricular and deep white matter hyperintensities. f Susceptibility weighted image showing superficial siderosis. g to i Fazekas grades 1, 2 and 3: punctate hyperintensities, early confluence, and confluent disease