How does Gamma Knife work?
Gamma Knife is typically performed in an outpatient setting and does not require a hospital stay. Many patients will only need a single treatment session, though this depends on each patient’s individual diagnosis.
The procedure itself involves four general steps. First, to ensure the patient does not move out of position during the treatment, a lightweight frame will be positioned on his or her head. The patient will then undergo an MRI to establish the size and location of the treatment target. Using this information, the radiation oncologist and neurosurgeon will then determine the specifications of the patient’s treatment, including target area, dosing, and duration.
Once the treatment plan is finalized, the patient will undergo the actual treatment procedure. The frame that is positioned on the patient’s head is secured to the Icon. The table simply moves into the machine and the treatment begins. Patients may undergo a single treatment session or multiple treatments (up to five), depending on their unique condition. The duration of the treatment depends on their individual treatment needs.