CyberKnife is the only radiosurgery machine approved by the FDA for all solid tumors: lung, prostate, liver, central nervous system (both brain and spinal cord), and pancreatic cancer.
Key advantages of CyberKnife versus Hi-Art (Tomotherapy) and Trilogy (Varian):
+ minimizes damage from radiation exposure to surrounding healthy tissue due to multiple angles of focus (150 to 250 uniquely angled beams delivered over 30 to 90 minutes)
+ compensates for body motion whether it be the head, prostate, or even organs that move with respiration
Source: http://www.rt-image.com/content=8504J05C485EB49640B6987644A0B0441 (ARAY Chief Marketing Officer interview)
Cancer treatment is a long-term secular growth business as a result of the graying of the world population. Radiosurgery is a non-invasive alternative to surgery to excise tumors.