Fig. 1

Brain MRI during the acute phase. Axial T2-weighted (A), diffusion-weighted (B) and ADC map (C) images show symmetrical hyperintensity and reduced diffusion in the the basal ganglia (caudate, putamen and pallidum). Proton MR spectroscopy (TE: 288 ms) shows a small lactate doublet peak at the 1.3 ppm level (D)