 Images are degraded by motion artifact. FLAIR images are nondiagnostic.No diffusion-weighted abnormalities are identified. No evidence of acute hemorrhage. Stable appearance of the DBS leads extending from bilateral frontal burr holes, through the frontal lobes, with tips just caudal to the thalami bilaterally. Appropriateness of the lead placement should be determined by the referring physician. There is linear T2 hypointensity correlating with the known connectors, which appear to course close to the skin surface but are not optimally evaluated on MRI due to metal susceptibility artifact. No evidence of focal fluid collection. There is iron deposition of the bilateral globus pallidus compatible with history of Parkinson's disease. The ventricles and sulci are unchanged in size There are no masses, mass effect or midline shift. There are no extraaxial fluid collections. Flow voids are present within the major vessels indicating patency. Redemonstration of a well demarcated CSF signal intensity in the apex of the petrous apices with no change since multiple prior studies. The exact etiology of this finding is not clear however it may represent small meningoceles. Partially empty sella. Opacification of the left mastoid air cells. The orbits are unremarkable. No suspicious enhancement is identified.
1.DBS leads without significant change from prior CT. Appropriateness of the lead placement should be determined by the referring physician.2.Electrode connectors appear to course close to the skin surface along the right upper neck, but are not optimally evaluated with MRI due to metal susceptibility artifact. CT may be more helpful. No focal fluid collection.3.Interval opacification of the left mastoid air cells which is nonspecific. Please correlate clinically.