Stereotactic radiosurgery (SRS) is a non-surgical radiation therapy indicated for functional abnormalities and small brain tumors. It delivers precisely-targeted radiation (delivery accuracy of one to two millimeters) in fewer high-dose treatments, thus preserving healthy tissue. SRS is also called stereotactic body radiotherapy (SBRT) when targeted for treating body tumors. Both the procedures are non-surgical and are performed on an outpatient basis.
Radiation during SRS is delivered using three methods: Linear Accelerator (LINAC) machines: It utilizes X-rays (photons) to treat cancerous and noncancerous abnormalities in the brain and other parts of the body. These machines can perform SRS in a single session or over three to five sessions for larger tumors (fractionated stereotactic radiotherapy). Gamma Knife machines: These machines use 192 or 201 small beams of gamma rays to…
