Determining a time-optimized treatment plan for a particle irradiation system

2012 
The invention relates to determining a radiation treatment plan for a particle irradiation unit (20), with the particle irradiation unit (20) depending on a target volume of the treatment plan (6) within an examination object (14; 18) with a particle beam (16) irradiated. The treatment plan is determined by presetting of the target volume (6) and a predetermined dose distribution in a first pass, in order to apply the particle beam (16) according to the predetermined dose distribution in the target volume (6) comprising a plurality of isoenergy layers (7-9). According to the first variant of the invention the radiation treatment plan in a second pass is additionally determined on the condition that at least one of the isoenergy layers is not irradiated, said at least one of isoenergy layers is determined according to one or more of the following criteria. According to the second variant of the invention the radiation treatment plan in a second pass is additionally determined on the condition that only some of the irradiated isoenergy layers, said isoenergy layers are determined according to one or more of the following criteria: • a minimum threshold energy, comprising the particle beam used for irradiation. • a maximum cutoff energy which has the particle beam used for irradiation. • the smallest number of dots of the isoenergy layers, which is determined according to the treatment plan after the first pass. • The smallest total particle number of isoenergy layers, which is determined according to the treatment plan after the first pass. • The smallest dose contribution of isoenergy layers of the target volume to be administered total dose. • The smallest contribution of an objective function, which is calculated to determine the treatment plan for each iso-energy layer. • The smallest dose compensation error of isoenergy layers ...
    • Correction
    • Source
    • Cite
    • Save
    • Machine Reading By IdeaReader
    1
    References
    0
    Citations
    NaN
    KQI
    []