Patent ID: 8502177

Claim:
Method for planning irradiation of two target volumes ( 81 , 92 , 101 , 121 ) with a beam ( 20 ) approaching target points ( 72 , 110 ) for the purpose of depositing a first target dose distribution in a first of the two target volumes ( 81 , 92 , 101 , 121 ) and a second target dose distribution in a second of the two target volumes ( 81 , 92 , 101 , 121 ), characterized by the following steps: assigning target points ( 72 , 110 ) to one of the target volumes ( 81 , 92 , 101 , 121 ), detecting an overlap of a first deposition caused by approaching a target point ( 72 , 110 ) assigned to the first target volume ( 81 , 92 , 101 , 121 ) with a second deposition caused by approaching a target point ( 72 , 110 ) assigned to the second target volume ( 81 , 92 , 101 , 121 ), and adapting the planning process for at least one of the target points ( 81 , 92 , 101 , 121 ) whose approach contributes to the overlap of the first and second deposition.