 MRI BRAIN: The ventricles and sulci are within normal limits. The cisterns remain patent. There is no midline shift or mass effect. There are no areas of abnormal signal. There is no diffusion abnormality. No extra-axial fluid collection is identified. Normal flow-voids are demonstrated in the major intracranial vascular structures. There is mild mucosal thickening of the ethmoid sinuses. Small retention cysts are visualized in the right maxillary sinus.MRA HEAD: The intracranial internal carotid arteries are normal in course and caliber. The anterior cerebral arteries are unremarkable. There is subtle loss of signal involving the right inferior division of the middle cerebral artery and to a lesser degree the left middle cerebral artery, thought to be related to artifact as this is not a dedicated on MRA views. The vertebral arteries, basilar artery, and posterior cerebral arteries are normal in course and caliber. There is no evidence of flow-limiting stenosis or aneurysm.MRA NECK: There is a separate origin of the left subclavian artery, left common carotid artery, and brachiocephalic artery from the arch. The common carotid arteries and cervical internal carotid arteries are normal in course and caliber. Both vertebral artery origins are patent. There is no evidence of flow-limiting stenosis or occlusion.
1. MRI of the brain without contrast is negative for evidence of acute ischemia.2. MRA of the head without and MRA of the neck with contrast are negative for evidence of steno-occlusive disease.