What is a radiotherapy simulator composed of?
A radiotherapy simulator consists of an array of X-ray components and mechanical positioning systems that are capable of reproducing typical functions and movements of a radiotherapy treatment unit. In radiotherapy, tumor volumes are defined in relation to a specific reference point called the isocenter. The isocenter remains constant throughout the treatment process. Radiotherapy simulators physically position the patient and X-ray components in order to localize the tumor in a manner that would minimize irradiation of healthy organs and tissue during an actual treatment. Other treatments that are non-isocentric can be also simulated. Using either method, the simulator’s mechanical systems must match the motions of the treatment unit in relation to the isocenter to ensure accurate patient positioning and treatment angles.
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