X-Ray Guided Robotic Radiosurgery for Solid Tumors

This paper presents an overview of the x-ray guided robotic radiosurgery system that has been developed for the ablation of solid tumors. A robot mounted linear accelerator is directed through a sequence of positions and orientations designed to deliver high radiation dosages focussed at a specific location. Patient movement during treatment is identified by stereo x-ray measurements and the robotic system adjusts the linear accelerator prior to the delivery of radiation at each location. The result is accurate delivery without rigid fixation of the tumor relative to the treatment system