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FIG 2. 85-year old woman scanned on the second day after onset of right-sided limb weakness and vertigo.
A–C, Axial FSE image (A), coronal FLAIR image (B), and axial diffusion-weighted image sensitive to water motion in the craniocaudal direction (C) are normal.
D–F, Repeat study performed 24 hours later because of persistent symptoms reveals a pontine signal abnormality on FSE image (arrow, D), while FLAIR image (E) is still normal. Trace diffusion-weighted image shows a clear pontine infarct (arrow, F). In the repeat study, lesion conspicuity was rated superior on the diffusion-weighted image.
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