System and computer program product for radiation inverse treatment planning

A computer program product, comprising:

• a tangible non-transitory computer usable medium including computer usable program code for a radiation inverse treatment planning system comprising a radiation source configured for delivering individual radiotherapeutic beams, wherein the beam is comprised of a plurality of beamlets, each individual radiotherapeutic beam having a predetermined location and incidence angle inside and/or outside a target area, a size and a shape, the computer usable program code being used to
• pre-compute a dictionary composed of a set of individual possible radiotherapeutic beams including for each individual radiotherapeutic beam its location and its incident angle,
• associate a weight to each individual radiotherapeutic beam, based on one or more constraints,
• wherein a processing unit executes the computer usable program code to
• find the sparsest subset of individual radiotherapeutic weighted beams so as to satisfy said one or more constraints.

A non-transitory computer data carrier storing presentation content created with a radiation inverse treatment planning method, comprising the following steps:

• pre-compute a dictionary composed of a set of individual radiotherapeutic beams including, for each individual radiotherapeutic beam its location and its incident angle, each individual radiotherapeutic beam being generated by a radiation source and having a predetermined location and incidence angle inside and/or outside a target area, a size and a shape, wherein the beam is comprised of a plurality of beamlets,
• associate a weight to each individual radiotherapeutic beam, based on one or more constraints,
• wherein a processing unit executes the computer usable program code to
• find the sparsest subset of individual radiotherapeutic weighted beams so as to satisfy said one or more constraints.