CyberKnife radiosurgery is a noninvasive radiation treatment that can be used as an alternative to open surgery in certain cases. It uses image-guided robotics to treat tumors with precisely directed beams of radiation. It may improve treatment outcomes and quality of life for some patients with malignant and benign lesions of the brain, spine, head and neck.
The CyberKnife uses high doses of focused radiation beams delivered from multiple points outside the body to irradiate the tumor or lesion. Each individual beam is not sufficient to cause clinical harm, but the convergence of all the beams at the target results in the tumor or lesion receiving a very high dose of radiation while sparing nearby normal tissue.
The CyberKnife's targeting system offers many patients improved tumor control with few side effects and fewer treatments. In fact, treatment that may have required as many as 30 sessions with conventional radiation therapy is usually reduced to one to five sessions.