| abstract |
The present invention concerns an inverse treatment planning system, comprising:n at least a data bus system ( 102 ), a memory ( 106 ) coupled to the data bus system ( 102 ), wherein the memory ( 106 ) comprises a computer usable program code, and a processing unit ( 104 ) coupled to the data bus system ( 102 ), wherein the processing unit ( 104 ) is configured to execute the computer usable program code ton pre-compute ( 10 ) a set of individual dose shots (a j ), each individual dose shot having a predetermined location inside and/or outside a target area, a size and a shape, associate ( 40 ) a weight (s j ) to each individual dose shot (a j ), based on one or more constraints ( 20 ), characterised in that the processing unit ( 104 ) executes the computer usable program code to find ( 30 ) the sparsest subset of individual dose shots, so as to satisfy said one or more constraints ( 20 ). |