CyberKnife®, also known as stereotactic body radiation therapy (SBRT), treats prostate cancer with 5 vs. the 40 treatments needed with traditional radiation. It's a non-surgical approach with minimal recovery time and virtually no side effects. Get back to your daily life without interruption. CyberKnife is a painless, non-invasive form of radiation that offers accurate, effective treatment for tumors anywhere in the body - even in places previously considered unreachable. This non-surgical solution destroys tumors by aiming beams of radiation at them from multiple directions while sparing healthy tissues. The technology offers several advantages over conventional external radiation treatments as well as other radiosurgery systems.