Planning for deep brain stimulator placement. Enhanced head CT:80 cc of Omnipaque 350 is administered for this exam.Stealth Enhanced head CT for surgical planning protocol is utilized.Minimal periventricular low attenuation of white matter is nonspecific and unchanged since prior head CT.There is evidence of a deep brain stimulator on the left side entering the calvarium from left paramedian frontal bone, traversing the left frontal lobe, entering the left lateral ventricle and with the tip of the stimulator at the level left cerebral peduncle. The appropriateness of this positioning should be decided by referring clinical physician.There is mild I. location of cortical sulci and ventricular system for patient's stated age of 34 similar to prior study. There is no evidence of any abnormal enhancement.A very small thin isodense subdural measuring approximately 2 mm in the frontal -- parietal region is again noted. Compared to prior MRI exam from 9 -- 8 -- 2011 there is interval decrease in the size of the subdural.
1.No evidence of acute intracranial findings.2.No evidence of abnormal enhancement.3.Left-sided deep brain stimulator with no change in position since prior study.4.A smaller residual left-sided frontal -- parietal subdural since prior MRI exam.