Fig. 1

Hypoxic ischaemic encephalopathy. Sixty-eight-year-old man with prolonged cardiac arrest presenting with fixed and dilated pupils. DWI (a) demonstrates symmetric increased signal within the deep grey matter (arrows) and cerebral cortex. ADC (b) demonstrates corresponding low signal, consistent with reduced diffusivity. FLAIR (c) demonstrates corresponding symmetric increased signal throughout the deep grey matter and cerebral cortex