FIG 4. Subject 8. A, MR venography (day 2) showing no flow in the internal cerebral veins, straight sinus, or vein of Galen.

B, T1-weighted image (450/14/1) (day 2) revealing swollen hypointense thalami.

C, T2-weighted image (2050/91/1) (day 2) depicting swollen hyperintense thalami.

D, Isotropic diffusion-weighted image (6500/101/1) (day 2) showing mixed hyperintense and isointense thalami.

E, Isotropic ADC map (day 2) depicting hypointense thalamic core (suggesting cytotoxic edema) with hyperintense rim (suggesting vasogenic edema).

F, T2-weighted image (2050/91/1) (day 6) revealing less swollen but still hyperintense thalami.

G, Diffusion-weighted image (6500/101/1) (day 6) is unchanged from that of day 2.

H, ADC (day 6) showing decreased signal intensity of rim, suggesting resolving vasogenic edema.

I, T2-weighted image (2050/91/1) (day 11) depicting decrease in thalamic swelling and hyperintensity.

J, Diffusion-weighted image (6500/101/1) (day 11) showing decreased volume of signal change.

K, ADC (day 11) is normal.