Patent ID: 9205280
Filing Date: 2015-12-08
Classification: A61N,G06T,G16H,G16Z

Abstract:
1. A method for generating planning data or control data for a radiation treatment, the method comprising: a) acquiring segmented data of an object which contains a treatment volume and a non-treatment volume; b) modelling at least some or all of the volume or surface of the treatment volume as a source of light or rays exhibiting a predefined or constant initial intensity; c) modelling the non-treatment volume as comprising volumetric elements or voxels which each exhibit an individually assigned feature or attenuation value or transparency value (t d) defining a map surface which surrounds the treatment volume or the object; e) calculating an accumulated intensity value for points or areas on the map surface, the accumulated intensity value being the sum of the intensities of all the rays which exhibit the predefined or constant initial intensity and are emitted from the volume or surface of the treatment volume and reach a respective point on the map surface by following a straight line, wherein if the ray passes through a non-treatment volume or voxel, the intensity of the respective ray is reduced or attenuated by a factor which is determined by the individual feature or attenuation value or transparency value of the respective non-treatment volume or voxel; and f) generating an intensity distribution on the map surface using the calculated accumulated intensity values.