Delayed postanoxic encephalopathy with serial MRI and PET studies.

c Fig. 1. Serial MRI studies with FLAIR, diffusion-weighted imaging (b = 1,000 s/mm 2 ) and ADC (apparent diffusion coefficients) mapping from left to right at the delayed onset of postanoxic encephalopathy ( a ), 6 months ( b ) and 13 months ( c ). Some lesions in both frontal white matter and the anterior corpus callosum showed persistent decreased diffusivity on diffusion-weighted imaging and ADC maps (0.35 ! 10 –3 mm 2 /s and 0.48 ! 10 –3 mm 2 /s; mean values of regions of interest indicated by arrowheads in b and c ).