Identify & Locate
The surgical team identifies and locates the target desired to treat the movement disorder. This is done through magnetic resonance imaging (MRI) and computed tomography (CT) scans.
The deep brain stimulation system has three components: (1) the electrode, (2) the extension, (3) the neurostimulator. A small hole is made in the skull and the electrode is placed into the brain. The tip of the electrode is placed within the target area which varies in location depending on the disease process.
Next, the extension is implanted. This is a wire that connects the electrode and neurostimulator. It passes underneath the skin of patient’s head, neck and the shoulder.
After this, the neurostimulator (battery) is implanted beneath the collarbone. However, it can also be implanted in the chest or beneath the skin of the abdomen. The neurostimulator is a battery that provides electrical charges to the electrode.
Once all three components of the system are in place, the neurostimulator sends electrical impulses through the extension and electrode into the target area of the brain. These impulses modulate the cells of the target location improving the symptoms of Parkinson’s disease.