Restricted diffusion is demonstrated within the occipital poles, perirolandic cortex, basal ganglia, and left hippocampus, in keeping with hypoxic-ischaemic injury. In addition, very extensive punctate regions off signal loss on susceptibility weighted imaging are demonstrated throughout the brain, particularly at grey-white matter junction superiorly, within the corpus callosum, and within the brain stem, consistent with diffuse axonal injury (grade III). The ventricles are only slightly enlarged for an individual of 18 years of age, however, increased intracranial pressure is likely present as demonstrated by the prominence of the optic nerves sheaths and early papilloedema. Increased flair signal within the sulci of the cerebral hemispheres likely represents subarachnoid blood, although high oxygen can have a similar appearance. Flow-induced signal voids are demonstrated within both carotid arteries, their branches, as well as the posterior circulation. Flow void within the dural venous sinuses is preserved.