Figure 1.
Watershed territories, on sequence Fluid Attenuated Inversion Recovery (FLAIR; at the top) and corresponding illustrative cases Diffusion-Weighted Imaging (DWI; below); in blue: cortical watershed, in red: internal watershed; (a) frontal WSI: between the anterior and the middle cerebral arterial territories, (a, b) occipital WSI: at the boundaries of the middle and the posterior arterial territories; (c) internal WSI: between territories of superficial and deep perforators of the middle cerebral artery; (d) paramedian WSI: between the anterior and the middle cerebral arterial territories.
WSI = watershed infarct.
Table 1.
Comparison between patients with watershed infarct (WSI +) and those with no watershed infarct (WSI -).