公开(公告)号：US11517767B2

公开(公告)日：2022-12-06

申请号：US17594307

申请日：2020-03-30

Applicant: RaySearch Laboratories AB

Inventor： Rasmus Bokrantz ,  Martin Janson

IPC: A61N5/10

Abstract: It is provided a method for generating a plurality of treatment plans for radiation therapy, each treatment plan specifying weights for a plurality of geometrically defined fluence elements. Each weight defines an amount of radiation fluence, to thereby provide radiation dose to a target volume. The method is performed in a treatment planning system and comprises the steps of: generating a first set of treatment plans; determining a subset of the fluence elements, based on the first set of treatment plans; and generating a second set of at least two treatment plans, wherein the treatment plans only contain weights for the subset of fluence elements.

公开(公告)号：US10315047B2

公开(公告)日：2019-06-11

申请号：US15533420

申请日：2016-06-23

Applicant: RaySearch Laboratories AB

Inventor： Lars Glimelius ,  Tore Ersmark ,  Martin Janson

IPC: A61N5/10

Abstract: An optimization method for ion based radiotherapy includes inverse planning based on optimization variables related to the particle energy, a range modulator or ridge filter, a block and/or a range compensator. This enables automatic optimization of complex cases.