Female, 76 years old, with sudden onset dizziness, headache and left ataxia. MRI brain:No restricted diffusion is seen. Scattered foci of T2 hyperintensity are noted in the periventricular regions and the brainstem. No significant edema or mass effect is seen. No evidence to suggest acute intracranial hemorrhage or any abnormal extra-axial fluid collection is observed. The ventricles are normal in size and morphology.MRA brain:Within the limitations of motion artifact, no high-grade vascular stenosis or occlusion is observed. No definite aneurysm or vascular malformation is seen. A 1 mm posteriorly directed outpouching from the left P1 segment is favored to represent an infundibulum.MRA neck:Common origin of the brachiocephalic and left common carotid arteries is seen. The origins of the great vessels are patent. No significant stenosis is detected in the carotid vessels by NASCET criteria. Likewise, no significant stenosis is detected in the vertebral vessels.
1.No evidence of acute ischemia. Findings are seen compatible with chronic microvascular ischemic disease.2.No significant vascular stenosis or occlusion is detected in the head or neck.