A CyberKnife delivers treatment over one to five days, whereas traditional radiotherapy can take up to seven weeks.
CyberKnife is mainly used for small, isolated tumours. Conventional radiotherapy is used to treat larger and more widespread cancers. CyberKnife targets the tumour with pinpoint accuracy, so it inflicts minimal damage to the surrounding healthy tissue.
Because the size of the radiation field is smaller, clinicians can deliver very high doses of radiation safely. Tumours often move during treatment, even when the patient is immobilised. The CyberKnife uses advanced robotic technology to automatically detect, track and correct for even the slightest movement as it occurs throughout treatment.