Patent ID: 7708682

Claim:
A method of planning a radiation therapy, the method comprising the steps of: determining a dose distribution for a target volume on the basis of a first image; determining at least one of shape and position variation of a surface of an object of interest in the target volume between the first image and a second image, the first and second images being taken at different points in time of a radation process, including: applying a first surface mesh to the object of interest in the first image; performing a first adaptation of the first surface mesh to a surface of the object of interest in the first image resulting in a second surface mesh; applying the second surface mesh to the object of interest in the second image; performing a second adaptation of the second surface mesh to the surface of the object of interest in the second image resulting in a third surface mesh; and obtaining a difference between the second surface mesh and the third surface mesh; adjusting the dose distribution on the basis of the at least one of shape and position variation; and at least one of storing the adjusted dose distribution and displaying the adjusted dose distribution.