Fig. 5

Long-term follow-up MRI scan and tracking of changes on DWI and FLAIR imaging. A 65-year-old woman underwent axial follow-up magnetic resonance imaging (MRI), including diffusion-weighted imaging (DWI) and coronal fluid-attenuated inversion recovery (FLAIR) imaging during the acute and chronic phases of stroke. The second coronal DWI (a) and coronal FLAIR (b) were obtained 9 days after stroke onset. Each sequence demonstrates a high signal in the pyramidal tract descending from the infarction. The third DWI (c) and FLAIR (d) were performed 48 days after onset. The high DWI signal disappeared, and the high FLAIR signal is more defined. All coronal DWI images (a and c) were created using multiplanar reconstruction