Patent Document ID: 20180117357
Application ID: 15524685
Patent Flag: 0

Claim One:
1. A method for generating a robust radiotherapy treatment plan for a subject at least partly on the basis of a region of interest in said subject, the method comprising the steps of: accessing a set of scenarios comprising at least a first scenario and a second scenario, where each scenario in the set of scenarios represents a specific realization of the uncertainty of one or more parameters relevant for treatment planning; determining two or more mappings of said region of interest, the two or more mappings comprising at least a first mapping based on said first scenario and a second mapping based on said second scenario; identifying a number of scenarios of said set of scenarios under which a specific sub-region is located within a corresponding mapping of said region of interest; calculating a weight for the specific sub-region, at least partly on the basis of the number of scenarios identified; and optimizing the treatment plan by optimizing an optimization function evaluated over the set of scenarios, wherein the evaluation comprises the use of said weight.