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US 8,130,907 B2Granted
Controlling X-ray imaging based on target motion
AssigneeAccuray Incorporated
InventorsCalvin R. Maurer, Jr., Sohail Sayeh, Matthew A. Core
Life of this patent
Estimating the term…
Abstract
An image guided treatment is performed to treat a target. To perform the image guided treatment, measurement data indicative of target motion is acquired. A timing of one or more x-ray images is determined based on the measurement data. Treatment may be performed on the target using the position of the target.
Claims20
An imaging method, implemented by a computing system programmed to perform the following, comprising:
- acquiring measurement data indicative of a target motion, wherein the measurement data includes a prior x-ray image;
- determining, using the computing system, a timing of one or more x-ray images based on the target motion;
- computing a time to completion of a radiation treatment beam;
- comparing an age of the prior x-ray image to the time to completion;
- and
- when the age of the prior x-ray image will exceed an image age threshold before the time to completion, acquiring a new x-ray image before delivering the radiation treatment beam.
3 more elements
An imaging method, implemented by a computing system programmed to perform the following, comprising:
- acquiring measurement data indicative of a target motion, wherein the measurement data includes a prior x-ray image;
- determining, using the computing system, a timing of one or more x-ray images based on the target motion;
- assigning an image age threshold based on the target motion;
- and
- establishing an x-ray imaging frequency based on the image age threshold.
2 more elements
An imaging method, implemented by a computing system programmed to perform the following, comprising:
- acquiring measurement data indicative of a target motion, wherein the measurement data includes a prior x-ray image;
- determining, using the computing system, a timing of one or more x-ray images based on the target motion;
- prior to treatment of a patient, determining a treatment plan that includes a plurality of radiation treatment beams;
- receiving selection of an initial image age threshold;
- determining that completing delivery of at least one radiation treatment beam extends beyond the initial image age threshold;
- and
- modifying the treatment plan by splitting the at least one radiation treatment beam into two or more radiation treatment beams, wherein delivery of each of the two or more radiation treatment beams will complete at or before the initial image age threshold.
4 more elements
A treatment system, comprising:
- an imaging apparatus including an x-ray source to generate one or more x-ray images;
- a motion detecting apparatus to acquire measurement data indicative of a target motion;
- and
- a processing device coupled with the imaging apparatus and the motion detecting apparatus, wherein the processing device is configured to:
- determine a timing of the one or more x-ray images based on the target motion:
- compute a time to completion of a radiation treatment beam;
- compare an age of the prior x-ray image to the time to completion;
- and
- when the age of the prior x-ray image will exceed an image age threshold before the time to completion, acquiring a new x-ray image before delivering the radiation treatment beam.
6 more elements
A treatment system, comprising:
- an imaging apparatus including an x-ray source to generate one or more x-ray images;
- a motion detecting apparatus to acquire measurement data indicative of a target motion;
- and
- a processing device coupled with the imaging apparatus and the motion detecting apparatus, wherein the processing device is configured to:
- determine a timing of the one or more x-ray images based on the target motion;
- assign an image age threshold based on the target motion;
- and
- establish an x-ray imaging frequency based on the image age threshold.
5 more elements
A treatment system, comprising:
- an imaging apparatus including an x-ray source to generate one or more x-ray images;
- a motion detecting apparatus to acquire measurement data indicative of a target motion;
- and
- a processing device coupled with the imaging apparatus and the motion detecting apparatus, wherein the processing device is configured to:
- determine a timing of the one or more x-ray images based on the target motion;
- prior to treatment of a patient, determine a treatment plan that includes a plurality of radiation treatment beams;
- receive selection of an initial image age threshold;
- determine that completing delivery of at least one radiation treatment beam extends beyond the initial image age threshold;
- and
- modify the treatment plan by splitting the at least one radiation treatment beam into two or more radiation treatment beams, wherein delivery of each of the two or more radiation treatment beams is completed at or before the initial image age threshold.
7 more elements
Dependencies are inferred from the claim text.