FIG 3. Bright basal ganglia and cortex on diffusion-weighted images obtained during the acute period (20 hours after insult).

A, Axial T2-weighted image (4500/105/1) shows questionable increased signal intensity in basal ganglia.

B, Corresponding low-strength diffusion-weighted image (0.8/123/30) shows no abnormality.

C, Corresponding high-strength diffusion-weighted image (0.8/123/1100) shows abnormally bright basal ganglia, thalami, and cortex (particularly in medial-occipital regions).

D, More cephalad axial low-strength diffusion-weighted image (0.8/123/30) shows no abnormality.

E, Corresponding high-strength diffusion-weighted image (0.8/123/1100) shows abnormally bright cortex surrounding the central sulci. This patient survived.