Planning the irradiation of a particle beam while taking into consideration a movement of a target volume

US10252082B2 · kind B2 · utility

Assignee

• GSI Helmholtzzentrum fuer Schwerionenforschung GmbH · DE

Inventors

• Christoph Bert · Aschaffenburg, DE
• Alexander Gemmel · Erlangen, DE
• Dirk Müssig · West Linn, US
• Robert Lüchtenborg · Munster, DE

Key dates

• Filing date: Oct 18, 2013
• Grant date: Apr 9, 2019
• Expiry date: Nov 22, 2034

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N2005/1072
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method is disclosed for irradiation planning for the irradiation of a moving target volume located in a body with a particle beam irradiation facility by means of rescanning, which method has the steps of defining the target volume in a reference condition of the motion, dividing the target volume among a plurality of target points that can be individually approached with a particle beam, calculating a nominal dose to be deposited in each of the target points of the target volume, defining a number of rescanning passes in which each of the target points of the target volume are approached, calculating a mean motion to be expected of the target points of the target volume based on a motion model, taking into account the mean motion to be expected of the target points of the target volume in the irradiation planning in such a manner that the deviation of the expected dose deposition from the nominal dose for each target point is determined, and the nominal dose for each target point is corrected on the basis of the deviation, and generation of control parameters for the irradiation facility, wherein the control parameters comprise a particle count per target point and rescanning pa…