FIG 5. 79-year old man scanned 1 day after sudden onset of left arm and hand weakness.

A–C, FSE (A) and FLAIR (B, C) images reveal separate regions of signal abnormality consistent with acute infarction in the anterior (closed arrows) and posterior (open arrows) portions of the left frontal lobe. Conspicuity of both infarcts was judged to be superior on the FLAIR sequence.

D, Diffusion-weighted image sensitive to water motion in the transverse direction shows both infarctions better.