Radiation treatment plan to avoid collisions in the treatment room

Abstract

System and procedure for generating and verifying a radiotherapy plan. The patient is imaged on the carrier platform to obtain target tissue images, and the treatment plan fields, including the proposed treatment angles, are determined based on these target tissue images. A first collision detection simulation is applied to determine the feasibility of the proposed treatment angles, using an initial set of simulation fields, including the proposed treatment angles. The treatment plan is generated based on this first collision detection simulation. A second collision detection simulation is applied to verify that no collisions occur in the motion paths between treatment angles of successive treatment plan fields, using a second set of simulation fields, including the generated treatment plan.For each detected collision, fields in the treatment plan are updated to avoid collisions in the motion paths between the treatment angles, and an updated second collision detection simulation is applied using the updated second set of simulation fields, including updated fields in the treatment plan. The treatment plan is released if no collision is detected during the second collision detection simulation.