Treating a target's partial motion range
AssigneeAccuray Incorporated
InventorsCalvin R. Maurer, Jr., Jay B. West
Life of this patent
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Abstract
A computing system determines a full motion range of a target, wherein the full motion range of the target defines an internal target volume (ITV). The computing system identifies a partial motion range of the target, wherein the partial motion range is a subset of the full motion range of the target. The computing system generates a partial-ITV based on the identified partial motion range, wherein the partial-ITV is a volume swept by the target as the target moves through the partial motion range, the partial-ITV being smaller than the ITV. The computing system generates a treatment plan to deliver treatment to the partial-ITV.
Claims20
A method, comprising:
- determining a full motion range of a target, wherein the full motion range of the target defines an internal target volume (ITV);
- identifying, by a processing device, a partial motion range of the target, wherein the partial motion range is a subset of the full motion range of the target;
- and
- generating a partial-ITV based on the identified partial motion range, wherein the partial-ITV is a volume swept by the target as the target moves through the partial motion range, the partial-ITV being smaller than the ITV.
A treatment planning system, comprising:
- a memory to store instructions for image guided treatment planning;
- and
- a processing device coupled to memory, the processing device to:
- determine a full motion range of a target, wherein the full motion range of the target defines an internal target volume (ITV);
- identify a partial motion range of the target, wherein the partial motion range is a subset of the full motion range of the target;
- generate a partial-ITV based on the identified partial motion range, wherein the partial-ITV is a volume swept by the target as the target moves through the partial motion range, the partial-ITV being smaller than the ITV;
- and
- generate a treatment plan that includes instructions for delivering treatment to the partial-ITV.
A treatment delivery system comprising:
- a treatment bed to support a patient during a treatment;
- at least one imager to generate images of the patient that include a target during treatment;
- a radiation source to generate a radiation treatment beam;
- and
- a processor to perform the following, comprising:
- load a treatment plan, wherein the treatment plan identifies a partial internal target volume (partial-ITV), the partial-ITV including a volume swept by the target as the target moves through a partial motion range, wherein the partial motion range is a subset of a full motion range of the target that defines an internal target volume (ITV);
- align a center of the partial-ITV to a treatment center of the treatment delivery system based on positioning the treatment bed;
- monitor a current target position based on images generated by the at least one imager;
- and
- activate the radiation source to deliver the radiation treatment beam to the partial-ITV while minimizing radiation delivered to areas outside of the partial-ITV.
Dependencies are inferred from the claim text.