 The exam is markedly limited due to motion artifact and susceptibility artifact due to braces.BRAIN: The ventricles and sulci are more prominent than expected for the patient's age indicating volume loss. The basal cisterns remain patent. There is no midline shift or mass effect. There are no areas of abnormal signal or abnormal intracranial enhancement within the visualized structures. No extra-axial fluid collection is identified. The midline structures and craniocervical junction are within normal limits. The DWI sequence is nondiagnostic due to artifact the SWI are near nondiagnostic.MRA/MRV:Within the limitations described above, the following observations are made. There is no gross stenosis or occlusion within the vertebral arteries, basilar artery and proximal PCAs. The more distal anterior cerebral arteries and visualized A1 branches appear normal. Portions of the M1 segments of the MCAs appear normal but there are areas not visualized secondary to artifact. There is no gross evidence of high-grade stenosis or large aneurysm within these visualized arteries.The superior sagittal sinus, inferior sagittal sinus, transverse sinuses, sigmoid sinuses, straight sinus, vein of Galen, internal cerebral veins, and several visualized cortical veins are patent. There is no evidence of venous thrombosis.
1.Limited MRA due to susceptibility motion artifacts. Within this limitation there is no gross stenosis or occlusion within the visualized arteries. Recommend repeat MRA once braces are removed.2.Normal MRV.3.Limited evaluation of the brain parenchyma is normal without gross evidence of ischemia however, within limitations of nondiagnostic DWI.