Siemens Aktiengesellschaft

Andreas Rau

Gerhard Lechsel

Martin Tacke

A method for irradiation planning for a quasi-cyclically moving target volume includes defining a first movement phase within a movement period of the target volume and carrying out a first irradiation planning using a first position of the target volume during the first movement phase. The method also includes defining a second movement phase within the movement period of the target volume, and carrying out a second irradiation planning for the second movement phase using a second position of the target volume during the second movement phase. An apportionment of a total dose to be applied is provided to a first partial dose that is allocated to the first movement phase and to a second partial dose that is allocated to the second movement phase.

Irradiation planning and irradiation for a quasi-cyclically moving target volume

A method for determining a movement phase of a periodically moving object in a plurality of sequentially produced images in a series of images of the periodically moving object. The method includes registering different images in the series of images. The method also includes determining a deformation that has occurred between the registered images. The method further includes&#x2014;determining the phase of the movement of the moving object for at least one of the images in the series of images based upon the determined deformation.

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Erlangen, Germany

Andreas Rau