公开(公告)号：US20230144962A1

公开(公告)日：2023-05-11

申请号：US17907546

申请日：2021-03-22

Applicant: RaySearch Laboratories AB (Pub)

Inventor： Bjorn ANDERSSON ,  Erik ENGWALL ,  Albin FREDRIKSSON ,  Kjell ERIKSSON

IPC: A61N5/10

CPC classification number: A61N5/1001 ,  A61N5/103 ,  A61N5/1038

Abstract: A computer-based method of optimizing a radiotherapy treatment plan for a patient is proposed, wherein a complete treatment comprising both external beam therapy and brachytherapy is optimized in one procedure using an optimization problem comprising an objective function designed to optimize the total dose distribution as a combination of a first dose distribution to be provided by a first radiation set and a second dose distribution to be provided by a second radiation set. One of the radiation sets is external beam radiotherapy and the other is brachytherapy. The optimization is based on a total desired dose for the whole treatment, images of the patient before the treatment starts and an estimated image of the patient after the first radiation set has been delivered.

公开(公告)号：US20250161714A1

公开(公告)日：2025-05-22

申请号：US18840949

申请日：2022-12-20

Applicant: RaySearch Laboratories AB (Publ)

Inventor： Erik Engwall ,  Otte MARTHIN ,  Rasmus BOKRANTZ ,  Lars GLIMELIUS ,  Albin FREDRIKSSON ,  Bjorn ANDERSSON ,  Viktor WASE

IPC: A61N5/10

Abstract: A method of creating an ion-based radiotherapy treatment plan includes a spot-weight optimization procedure arranged to create the plan involving an arc as a combination of one or more sub-arcs and possibly a static beam wherein the one or more sub-arcs either overlap or have different directions. The method includes selecting the first and second sets of energy levels together.

公开(公告)号：US20230141197A1

公开(公告)日：2023-05-11

申请号：US17907543

申请日：2021-03-22

Applicant: RAYSEARCH LABORATORIES AB

Inventor： Bjorn ANDERSSON ,  Erik ENGWALL ,  Albin FREDRIKSSON ,  Kjell ERIKSSON

IPC: A61N5/10

CPC classification number: A61N5/1038 ,  A61N5/1039 ,  A61N5/1001 ,  A61N2005/1087 ,  A61N2005/1089

Abstract: A computer-based method of optimizing a radiotherapy treatment plan for a patient is proposed, wherein a treatment plan to be provided by one radiation set is optimized taking into account a previously delivered dose delivered by a different radiation set. One of the radiation sets is external beam radiotherapy and the other is brachytherapy.