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Our offices are now open for in-person appointments. To schedule an appointment with one of our brain or spine experts, please call 1-844-NSPC-DOC. We are now In-Network with The Empire Plan (NYSHIP).

Gamma Knife Radiosurgery

What is Gamma Knife Radiosurgery?

Gamma Knife radiosurgery, a form of stereotactic radiosurgery, is a neurosurgical technique for treating brain tumors and other brain diseases with highly focused radiation beams.

It is the most precise form of single-session brain radiation surgery. First, a specially designed frame securely holds the patient’s head stationary while medical imaging creates a three-dimensional diagram of the brain. With the exact coordinates from the brain imaging, neurosurgeons can then pinpoint the abnormality and direct the gamma rays to the tumor, lesion or other affected area.

Because the procedure uses a radiation beam and not an incision, the process is bloodless. Radiosurgery can often be used in place of standard surgery and radiation. This non-invasive treatment usually allows a patient to be discharged the day of surgery.

Common Conditions Treated by Gamma Knife Radiosurgery

Our premier specialists are experienced in treating a variety of conditions:

  • Malignant brain tumors such as metastases
  • Benign brain tumors such as meningiomas
  • Brain cancer
  • Arteriovenous malformations (AVM)
  • Trigeminal neuralgia (TN) – sharp facial spasms
  • Acoustic neuromas
  • Pituitary tumors
  • Cavernous malformations

Gamma Knife Radiosurgery Procedure

Adults are generally kept awake during the treatment, but children are usually given anesthesia to prevent them from moving during the procedure. The treatment may take several hours.

  1. Preparation The patient’s scalp is numbed in preparation for the procedure. Pins that press just under the head secure a frame to the head.
  2. Mapping An MRI (magnetic resonance imaging) or CT scan (computerized tomography) creates a three-dimensional map. Comparing the reference points on the frame, the neurosurgeon will pinpoint the tumor, lesion or area to be treated.
  3. Planning the Procedure Using the imaging scans, the expert medical team will plan the treatment process to accurately deliver the correct amount of radiation to the area.
  4. Gamma Treatment The machine directs beams of gamma radiation from many angles into the targeted point.
  5. After Care Once the head frame is removed, the pin holes on the scalp may be a bit sore, and the patient may have a headache or feel nauseated. The patient may not notice results of the procedure right away; effects can take several weeks, months and sometimes longer.

World Class Expertise

For over 50 years & 350,000 patients NSPC has been a trusted global medical leader.
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