What is Gamma Knife?

Gamma Knife radiosurgery is a stereotactic radiosurgery (SRS) technique for tumours, as well as other abnormalities that can develop in the brain. The Gamma Knife is a radiation therapy machine that can deliver large doses of precisely targeted radiation, minimising radiation to the surrounding healthy brain tissue.1

How does Gamma Knife work?

Gamma Knife radiosurgery delivers multiple converging beams of gamma radiation toward a central point to deliver high dose radiation to a specific target within the brain and to avoid significant doses to normal brain tissue.1

Who is eligible for Gamma Knife radiosurgery?

Gamma Knife radiosurgery is used to treat a variety of brain disorders. Your treatment team are neurosurgeons and radiation oncologists, radiation therapists, physicists and nurses with specialised training in the treatment of neurological conditions, as well as other healthcare professionals.1

The team will work together to decide if this is an appropriate treatment option for you after careful evaluation of your condition, ensuring you are eligible based on all clinical circumstances.

Eligible conditions may include (but are not limited to):1

  • Brain metastases
  • Meningiomas
  • Pituitary adenomas
  • Acoustic neuromas
  • Arterial venous malformations
  • Trigeminal neuralgias

Gamma Knife may not be suitable if:1

  • The treatment area is too large
  • The lesion that needs treatment is too close to important critical structures in the brain.

Benefits and risks of Gamma Knife

Gamma Knife helps to enable the treatment of hard-to-reach brain tumours that may not be easily treated with conventional surgery.2

SRS may have benefits over conventional whole-brain radiation therapy. By limiting radiation to the surrounding healthy brain tissue, SRS may offer a reduction is side effects experienced with whole-brain radiation.3

You should be aware that radiosurgery is a serious medical treatment and comes with risks and side effects that should be discussed with your doctor.

What usually happens during Gamma Knife radiosurgery?

If your treatment team decides that Gamma Knife is right for you, you will likely go through the steps below.

Potential side effects of cancer treatment

All cancer treatments may have side effects. The type and severity of side effects will vary between individuals, and the risk may be affected by your general health, other treatments you've had and the targets to be treated. You can ask your doctor for detailed information about the side effects which you may experience with any treatment recommended for you.

It’s important that you attend your follow-up visits and scans so any issues can be identified and treated as soon as possible.

Find out more

Enquire now to for more information about Gamma Knife radiosurgery.

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This website is provided for information purposes only. Nothing on this website is intended to be used as medical advice or, to diagnose, treat, cure, or prevent any disease. It should not be used as a substitute for your own health professional's advice.

Any medical procedure or treatment involving the use of radiation carries risks, including skin irritation and associated pain. Before proceeding with treatment, you should discuss the risks and benefits of the treatment with an appropriately qualified health practitioner. Individual treatment outcomes and experiences will vary.