Figure 1.

Analysis of diffusion changes and apparent diffusion coefficient (ADC) in the hippocampus. The mean ADC was calculated by manually defining regions of interest (ROIs) that were positioned in the area of the hyperintense DWI lesion in CA1. Magnetic resonance images (3 T) showing a DWI lesion in the head of the right cornu ammonis in the coronal and transversal plane (upper and lower left) with a corresponding lesion in the T2-weighted image (inset, lower left). Inset (upper left) shows the magnified DWI lesion and the ADC signal changes in the coronal (upper right) and transversal plane (lower right) indicating the ROIs for quantifying the ADC values (insets upper and lower right).