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FIG 2. Two T2-weighted fast spin-echo (A, D), diffusion-weighted (B, E), and trace apparent diffusion coefficient–calculated (C) f-axial sections from the first (time course, 0 hours) MR imaging study are reported. Ventricular and cortical cerebrospinal fluid spaces are clearly reduced. The black arrowhead shows clear swelling of the corpus callosum (especially if compared with Fig 4). The white arrow shows the thickened posterior limb of the internal capsula, and the black arrow shows increased diffusion-weighted signal intensity within the myelinated white matter at the same location. Moderate T2-weighted signal intensity increase is visible within the posterior thalamus bilaterally. The white arrowhead indicates the swollen cortical rim. Circular regions of interest for frontal and occipital unmyelinated white matter are shown for one hemisphere on T2-weighted section (D). Regions of interest for basal ganglia, frontal and occipital unmyelinated white matter, and myelinated white matter of the internal capsula are depicted on apparent diffusion coefficient maps (C and F). These regions of interest were transferred from T2 b = 0 corresponding sections. Cortical gray matter regions of interest could not be traced because of partial volume effect.
