Question 1

What types of tumors can be treated with CyberKnife or GammaKnife?

Accepted Answer

CyberKnife and GammaKnife are used to treat a wide range of tumors, including brain tumors (both benign and malignant), brain metastases, acoustic neuromas, pituitary adenomas, arteriovenous malformations, and trigeminal neuralgia. CyberKnife can also target tumors in the spine, lung, liver, pancreas, and prostate. GammaKnife is specifically designed for intracranial conditions. Your radiation oncologist will determine suitability based on tumor size, location, and type.

Question 2

How many treatment sessions are typically needed with radiosurgery?

Accepted Answer

GammaKnife treatment is typically completed in a single session lasting 1 to 4 hours. CyberKnife treatments usually require 1 to 5 sessions (called fractions) spread over one to two weeks, depending on the tumor's size and location. Both are outpatient procedures, meaning no hospital stay is required. Most patients can resume normal activities within a few days, making these treatments particularly convenient for medical travelers.

Question 3

Is radiosurgery painful, and does it require anesthesia?

Accepted Answer

Radiosurgery is a non-invasive, painless procedure. CyberKnife treatments require no anesthesia and no head frame, so patients simply lie comfortably on the treatment table. GammaKnife requires a lightweight stereotactic frame attached to the head under local anesthesia, which may cause mild discomfort. Most patients report little to no pain during or after either treatment and can return to their accommodation the same day.

Question 4

What is the difference between CyberKnife and GammaKnife?

Accepted Answer

GammaKnife uses multiple cobalt-60 radiation sources focused on a single point and is designed exclusively for brain lesions. It requires a rigid head frame for precise targeting. CyberKnife uses a robotic arm to deliver linear accelerator radiation and can treat tumors anywhere in the body, including the brain, spine, lung, and liver. CyberKnife uses real-time image guidance instead of a head frame, making it a frameless and more comfortable experience for patients.

Question 5

What are the potential side effects of CyberKnife or GammaKnife treatment?

Accepted Answer

Side effects are generally mild compared to conventional radiation therapy or surgery. Patients may experience temporary fatigue, mild headache, nausea, or localized swelling near the treatment area. These symptoms usually resolve within a few days to weeks. Long-term side effects are uncommon but may include radiation necrosis at the treatment site. Your radiation oncologist will discuss the specific risk profile based on the location and size of your tumor.

Country	Price Range
US	$30,000 – $60,000
India	$8,000 – $15,000
Israel	$15,000 – $30,000

CyberKnife & GammaKnife

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