September 2014

Eight year old male with a history of epilepsy. Findings of decreased blood flow within the right temporal lobe of the brain raised concerns for possible epileptogenic focus.

Images (1), (2) and (3) above are show EEG electrode grid placement on the brain. The intracranial EEG monitoring technique is used to precisely map the nerve cell activity of the brain.
Images 1 (view from left), and 3 (view from above) show how the grid projects over the left skull, in the region of surgical site, with associated surgical clips and electrode leads (arrows).
Image 2 shows use of software in the 3DQ lab to make the skull transparent, thereby allowing the physician to see the location of the grid over the brain.
Image 4 demonstrates shows a scaled down “3D printed model” of the lower half of the brain made from the same data that created image 2. In the future, models like this could allow better comprehension of the locations of epileptogenic focii and help plan needed interventions.