Department of Radiotherapy ❯ Our Techniques ❯ Stereotactic Body Radiation Therapy (SBRT)
As an advanced form of radiation therapy, Stereotactic Body Radiation Therapy (SBRT) aims to deliver high dose radiation to destroy tumours in fewer treatments than conventional fractionation. SBRT is mainly used to treat tumours in the body, such as lung, bone, liver and prostate malignancies. It is a non-invasive treatment option to surgery, suitable for the elderly or poor health patients.
SBRT requires extremely precise and accurate delivery, as higher doses of radiation are delivered. Advanced patient immobilization and motion/tumour tracking devices are incorporated upon suitability to increase patient stability during treatment. Some of these devices include abdominal compression device, Active Breathing Control device, and fiducial marker implants. In addition, volumetric imaging showing anatomies of interest are performed before each treatment for positional verification. The tumour location is visualized in a three-dimensional view, to ensure that the radiation is delivered to the appropriate region. SBRT can be integrated with several techniques, such as tomotherapy, image-guided intensity modulated radiation therapy (IMRT), and volumetric modulated arc therapy (VMAT). The latest machines, Cyberknife M6 and Unity MRLinac are also equipped to perform SBRT.