Stereotactic radiosurgery/radiation therapy linear accelerator system
Definition
A stationary assembly of computer-based devices designed to produce high-energy electrons to yield high-energy x-rays used to perform stereotactic radiosurgery (SRS) to treat brain, neck, or spinal cord tumours, and/or to perform stereotactic body radiation therapy (SBRT). It consists of a linear accelerator with a moveable/rotating gantry, collimators, patient table, and an operator's console. A metal head frame attached to the patient's skull may be used for precise radiation beam targeting using fiducial references; the system may include CBCT-based image-guided radiation therapy (IGRT), 3-D imaging, and record/verify functionalities to track target location during treatment.