Determination of a planning volume for irradiation of a body
AssigneesGSI Helmholtzzentrum fuer Schwerionenforschung GmbH, Siemens Aktiengesellschaft
InventorsChristoph Bert, Gerhard Kraft, Eike Rietzel
Life of this patent
Estimating the term…
Abstract
A system for irradiating a predetermined target volume in a body with a particle beam is constructed to direct the particle beam at a multiplicity of target points in the body in succession, in order to produce at each of the target points a predetermined dose distribution. For the system there is determined a planning target volume by first determining, in a fictive homogeneous body, a target volume equivalent to the minimum target volume in the body. The equivalent target volume is extended by a safety margin, in order to determine the planning target volume.
Claims25
Method of determining a planning target volume for a system for irradiating a predetermined minimum target volume in a body with a particle beam, the system being constructed to direct the particle beam at a multiplicity of target points in the body in succession in order to produce at each of the target points a predetermined dose distribution, comprising the following steps:
- determining, in a fictive homogeneous body, a target volume equivalent to the minimum target volume in the body;
- extending the equivalent target volume by a safety margin, in order to determine the planning target volume.
Apparatus for determination of a planning target volume for a system for irradiating a predetermined minimum target volume in a body with a particle beam, the system being constructed to direct the particle beam at a multiplicity of target points in the body in succession, in order to produce at each of the target points a predetermined dose distribution, having:
- a device for receiving a data set defining the minimum target volume;
- a device, connected to the device for receiving, for determining, in a fictive homogeneous body, a target volume equivalent to the minimum target volume in the body;
- a device for extending the equivalent target volume by a safety margin, in order to determine the planning target volume.
(canceled)
Dependencies are inferred from the claim text.