Pinpoint accuracy
Before surgery, doctors use brain scans to build up a computer-generated map of the brain and the area they want to target. 'The computer-generated maps allow surgeons to target structures deep in the brain with millimetre precision,' explains Ali.
During surgery, the patient's head is completely immobilised by a metal frame. Surgeons remove a small piece of the skull, and a surgical robot slowly and carefully inserts the electrodes into the target area of the brain.
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This 3D image of a patient's head was created using a series of brain scans. The green and yellow lines show two possible pathways for electrodes.
Image: Cleveland Clinic |
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