img_0237.jpgGamma Knife

With the ability to deliver a non-invasive but highly accurate therapeutic dose of radiation to the brain with Gamma Knife, Archbold Memorial Hospital has transformed treatment for patients across the region with brain disorders and cancer metastases (cancer that has traveled to the brain from elsewhere in the body) for the last 12 years.

Using this state-of-the-art radiosurgery equipment, the Gamma Knife team has successfully treated over 900 patients since the hospital acquired the equipment through the generosity of Archbold Foundation donors in 2003.

The Gamma Knife Perfexion™, a technology that has been referred to as the “gold standard” treatment for radiosurgery of the brain.  Archbold is one of only 275 hospitals worldwide to acquire Gamma Knife.  And Archbold is the only hospital in the region with Gamma Knife Perfexion™ technology—the latest and most precise radiosurgery technology to hit the market.

  Video Courtesy of Elekta


Treatable Conditions 

Gamma Knife treatment is an option for patients with many conditions, such as those below. It may also be used along with conventional surgery, chemotherapy, or other radiation treatments.

Functional Disorders Malignant Brain Tumors
Benign Brain Tumors Vascular Disorders
Disorders that can now be treated with Perfexion

How it Works

The Gamma Knife Perfexion™ functions similar to earlier models in that there is actually not a knife, in the normal sense of the word. One major advantage of the Perfexion™ is the revolutionary new positioning system that wraps doses of radiation around the most complex shapes of brain malformations and disorders.

The system precisely targets even the smallest tumors with sub-millimeter precision.  Each beam has a relatively low energy, so the radiation has virtually no effect on the healthy brain tissue it passes through. At the focal point, however, all the beams converge to deliver a high dose of radiation that kills the cancer cells, even in deep-seated tumors with irregular shapes.

The new technology offers unparalleled advantages for patients. 

The Gamma Knife Perfexion has the potential to treat a broader array of conditions, mainly because the machine can now deliver radiation as far down as the seventh cervical vertebra, compared to the second cervical vertebra previously.



Increased Safety

Because Gamma Knife surgery is noninvasive and does not require anesthesia, the risk of infection, post-operative hemorrhage, and other complications is minimal. The procedure requires only a small amount of local anesthesia for the head-frame fitting. Most patients receive light sedation to relax.

Outpatient Procedure, Fast Recovery

Gamma Knife surgery is one-day, usually outpatient treatment. Occasionally a patient may stay overnight for observation. Most patients return to pre-treatment activities, including work, 24-48 hours later. Usually no physical therapy or rehabilitation is needed. For all of these reasons, radiosurgery is an extremely cost-effective treatment.


Documented outcomes prove the treatment's safety and effectiveness. Clinical studies show that in comparison to other procedures, Gamma Knife radiosurgery typically results in higher success rates, a significantly lower incidence of recurrence of tumors, and reduced risk of serious side effects.



Health Talk

This health talk was presented by Archbold radiation oncologist, Steven Johnson, MD and Archbold neurosurgeon, Gerald Kadis, MD.  They discussed the advances in treatment with the new Gamma Knife Perfexion technology.


Contact Us


Hours and Location

919 S Broad S, Thomasville, GA 31792

8:30 am - 5:00 pm Monday through Friday

Resources or


Gamma Knife radiosurgery is covered by Medicare, Medicaid, and most insurance plans. Contact your insurance carrier for specific coverage information.