Dizziness and giddiness MRI of the brainNo diffusion weighted abnormalities are appreciated.The CSF spaces are appropriate for the patient's stated age with no midline shift. No abnormal enhancing mass lesions are appreciated intracranially. No intracranial hemorrhage is identified. No edema is identified within the brain parenchyma.Normal vascular flow voids are present in the distal carotid and vertebral arteries, the basilar artery and the proximal anterior, middle and posterior cerebral arteries as well as the internal cerebral veins and superior sagittal sinus.The visualized portions of the paranasal sinuses are clear. The visualized portions of the mastoid air cells are clear. The visualized portions of the orbits are intact. The eyeball lenses are thin.MRA brain:Antegrade flow is present in the distal internal carotid arteries, the distal vertebral arteries, the basilar artery and the proximal anterior, middle and posterior cerebral arteries.There is no evidence for intracranial aneurysm or cerebrovascular occlusion.The anterior communicating artery is identified and is medium size. The posterior communicating arteries are intact but very small. The vertebral arteries are similar in size. The left A1 segment is very small.MRA neck:There is opacification of the aortic arch, great vessels from the aortic arch and carotid arteries and vertebral arteries. There is poor opacification of the proximal portions of the great vessels as well as the proximal portions of the vertebral arteries. To the extent of visualization there is no stenosis identified of the great vessels from the aortic arch. To the extent of visualization there is no significant stenosis along the course of the vertebral arteries. On the basis of NASCET criteria there is no significant stenosis at the carotid bifurcations.The left common carotid artery originates from the innominate artery
1.No evidence for intracranial cerebrovascular occlusive disease.2.No evidence for extracranial cerebrovascular occlusive disease. Please note that the proximal portions of the great vessels at the level of the aortic arch and the proximal portions of the vertebral arteries are not opacified adequately. To the extent of visualization there is no major occlusive disease present in these structures.3.There is no evidence for intracranial mass and no evidence for acute ischemic cerebral infarction