Stereotactic Body Radiotherapy (SBRT) is a specialized form of radiation therapy that delivers precise doses of radiation to a small area within the body. SBRT usually involves a higher dose per treatment than conventional treatment. Also known as stereotactic ablative radiotherapy (SABR), SBRT is particularly effective for treating small, well-defined tumors. Its origins come from the technological advancement of stereotactic radiosurgery (SRS), which is a similar procedure, used specifically for brain tumors.
SBRT differs significantly from traditional radiation therapy in its precision and delivery. While conventional radiation therapy typically involves daily treatments over several weeks with lower doses per session, SBRT condenses the treatment into just a few sessions, often completed within one to five days. The higher doses of radiation in each session are precisely targeted using advanced imaging and treatment planning technologies, allowing for increased accuracy in hitting the tumor while sparing nearby healthy tissues. This approach not only enhances the therapeutic effect but also reduces the overall treatment duration, offering a more convenient and efficient option for certain patients.