Figure 1

Radiation therapy workflow. CT imaging provides the 3D image set of the patient. This image set is used by the physician to draw the contours of the tumor and the nearby important healthy organs. At this point this combined dataset (CT and contours) is handed off to a treatment planner who selects beam angles and proceeds with the optimization of a treatment plan. This is the step that we model and provide data for in this paper. In the actual clinical workflow, fluence levels that are the result of the optimization need to be converted to multi-leaf collimator positions and monitor units to form a deliverable treatment plan. At this point the deliverable treatment plan is verified, and once it passes this quality assurance step, it is used to treat the patient.