Altered mental status Patchy areas of low attenuation in the subcortical and periventricular white matter reflect small vessel ischemic disease of indeterminate age. If there is clinical concern for acute ischemia, MRI is recommended. There is no evidence of intracranial hemorrhage, mass or edema. The ventricles and basal cisterns are normal in size and configuration.The calvaria and skull base are radiographically normal. The visualized paranasal sinuses and mastoid air cells are normally pneumatized.
Small vessel ischemic disease of indeterminant age