Determination of control parameters for irradiation of a moving target volume in a body

US8299448B2 · kind B2 · utility

Assignees

• GSI Helmholtzzentrum fuer Schwerionenforschung GmbH · DE
• Siemens Aktiengesellschaft · DE

Inventors

• Christoph Bert · Aschaffenburg, DE
• Eike Rietzel · Weiterstadt, DE
• Gerhard Kraft · Darmstadt, DE

Key dates

• Filing date: Feb 19, 2008
• Grant date: Oct 30, 2012
• Expiry date: Apr 9, 2029

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N2005/1087
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A control parameter is determined for a system for irradiating a predetermined target volume in a body with a particle beam. The system is constructed to direct the particle beam at a multiplicity of target points in the target volume in succession in order to produce at, each of the target points a predetermined dose distribution in a region around the target point. The control parameter controls the extent of an overlap of the dose distribution of a first target point with the dose distributions of neighboring target points. For determination of the control parameter, there is first determined a movement parameter which quantitatively characterizes the movement of the body at the first target point. The control parameter is determined in dependence on the movement parameter.