公开(公告)号：US20210220673A1

公开(公告)日：2021-07-22

申请号：US16302008

申请日：2017-10-27

Applicant: Brainlab AG

Inventor： Cornelis KAMERLING ,  Stefan SCHELL ,  Andreas SCHATTI

IPC: A61N5/10 ,  G16H20/40 ,  G16H50/50 ,  G16H40/63 ,  G16H30/20

Abstract: Disclosed is a computer-implemented method of determining a treatment plan, encompassing acquiring patient image data, acquiring target data describing targets, acquiring position data describing control points which define one or more arcs, and determining target projection data which describes outlines of the target in a beam's-eye view. Margin data is acquired. For the outlines, margins are applied to determine auxiliary outlines. Beam shaping device data is determined describing configurations of the collimator leaves so that irradiation of the auxiliary outlines is enabled. Based on these configurations, the irradiation amount is simulated for voxels of the patient image data. Constraints to be fulfilled by the treatment plan may be set. Configurations of blockings, arc-weights and margins are proposed. Only different combinations of these parameters are proposed while additional possible parameters are neglected. An optimization algorithm is used to minimize an objective function. The best configuration is selected as the treatment plan.

公开(公告)号：US20230139690A1

公开(公告)日：2023-05-04

申请号：US17977591

申请日：2022-10-31

Applicant: Brainlab AG

Inventor： Cornelis KAMERLING ,  Stefan SCHELL ,  Andreas SCHATTI

IPC: A61N5/10 ,  G16H20/40 ,  G16H50/50 ,  G16H30/20 ,  G16H40/63

Abstract: Disclosed is a computer-implemented method of determining a treatment plan, encompassing acquiring patient image data, acquiring target data describing targets, acquiring position data describing control points which define one or more arcs, and determining target projection data which describes outlines of the target in a beam's-eye view. Margin data is acquired. For the outlines, margins are applied to determine auxiliary outlines. Beam shaping device data is determined describing configurations of the collimator leaves so that irradiation of the auxiliary outlines is enabled. Based on these configurations, the irradiation amount is simulated for voxels of the patient image data. Constraints to be fulfilled by the treatment plan may be set. Configurations of blockings, arc-weights and margins are proposed. Only different combinations of these parameters are proposed while additional possible parameters are neglected. An optimization algorithm is used to minimize an objective function. The best configuration is selected as the treatment plan.