Figure 1

Figure 1

MRI of specific acute encephalopathy syndromes. Serial axial fluid-attenuated inversion recovery sequences (on 1.5-T MRI, except A and D which are diffusion-weighted imaging; on 1.5-T MRI). (A) Hypoxic-ischaemic encephalopathy with hyperintense thalami and cortical grey matter; (B) sepsis-related encephalopathy with bilateral patchy hyperintensities in the deep white matter and ependymal hyperintensities along the ventricules (ie, ventriculitis); (C) central pontine myelinolysis (central pontine hyperintensities in the pons (arrows)); and (D) acute hepatic encephalopathy with hyperintensities from a cytotoxic oedema in the globus pallidus (arrows).