Traditional radiation therapy typically delivers radiation to a wide field of tissue in the body resulting in the treatment of both the tumor and some amount of surrounding healthy tissue, delivered over a period of weeks. Radiosurgery devices, such as CyberKnife, were designed to deliver radiation with extreme accuracy, targeting the tumor with minimal damage to the surrounding healthy tissue. With this level of accuracy, clinicians can deliver very high doses of radiation safely with minimal effect to surrounding healthy tissue in one to five days compared to weeks of traditional radiation therapy.