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FIG 1. Subject 4: watershed ischemia.
A, T1-weighted image shows hypointensity bilaterally in the anterior and posterior watershed areas.
B, T2-weighted image shows hyperintensity in the same areas, suggesting edema.
C, Anisotropic diffusion-weighted image (z gradient) shows corresponding signal hyperintensity.
D, Isotropic ADC map confirms a decrease in water diffusion with hypointensity in all watershed regions, most prominently seen in left posterior watershed area.
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