US 10,293,181 B2 · Prospective adaptive radiation therapy planning

Abstract

A therapy planner is configured to construct a therapy plan based on a planning image segmented into segments delineating features of a subject. A predictive plan adaptation module is configured to adjust the segments to represent a foreseeable change in the subject and to invoke the therapy planner to construct a therapy plan corresponding to the foreseeable change. A data storage stores a plurality of therapy plans generated for a subject by the therapy planner and the predictive plan adaptation module based on at least one planning image of the subject. A therapy plan selector is configured to select one of the plurality of therapy plans for use in a therapy session based on a preparatory image acquired preparatory to the therapy session.

Claims20

Dependent claims

A radiation therapy planning device comprising:

a computer programmed to implement:
a radiation therapy planner configured to construct a radiation therapy plan based on a planning image segmented into segments delineating features of a subject including a tumor to be irradiated by radiation therapy and one or more critical organs whose radiation exposure during the radiation therapy is to be constrained or limited;
and
a predictive plan adaptation module configured to employ a deformational feature model to adjust the geometry of at least one of the segments to represent a foreseeable change in the subject and to invoke the radiation therapy planner to construct a radiation therapy plan corresponding to the foreseeable change;
and
a data storage configured to store a plurality of radiation therapy plans generated for a subject by the radiation therapy planner and the predictive plan adaptation module based on the planning image of the subject.

3 more elements

A radiation therapy planning device for planning a fractionated radiation therapy, the radiation therapy planning device comprising:

a computer programmed to:
generate a plurality of radiation therapy plans by operations including:
segmenting a planning image into segments delineating features of a subject including a tumor to be irradiated by the fractionated radiation therapy and one or more critical organs whose radiation exposure during the fractionated radiation therapy is to be constrained or limited;
constructing a radiation therapy plan based on the planning image segmented into said segments delineating features of the subject;
and
deforming at least one of the segments to represent a foreseeable change in the subject and repeating the constructing with the deformation to construct a radiation therapy plan corresponding to the foreseeable change;
and
select one of the plurality of radiation therapy plans for use in a radiation therapy session of the fractionated radiation therapy based on subject information acquired after acquisition of the planning image and before commencement of the radiation therapy session.

5 more elements

A radiation therapy planning device for planning a fractionated radiation therapy, the radiation therapy planning device comprising:

a computer programmed to:
generate a plurality of radiation therapy plans by operations including constructing a radiation therapy plan based on a planning image segmented into segments delineating features of a subject and performing one or more iterations of:
adjusting the segmented planning image to represent a foreseeable change in the subject including at least one of:
change in a bladder size, necrosis of a tumor, translation of a critical organ, and rotation of a critical organ;
and
constructing a radiation therapy plan corresponding to the foreseeable change based on the adjusted segmented planning image representing the foreseeable change;
and
select one of the plurality of radiation therapy plans for use in a radiation therapy session of the fractionated radiation therapy based on subject information acquired after acquisition of the planning image and before commencement of the radiation therapy session.

5 more elements

Dependencies are inferred from the claim text.

Prospective adaptive radiation therapy planning

Life of this patent

Prospective adaptive radiation therapy planning

Life of this patent

Abstract

Claims20