Image-based radiation therapy quality assurance
AssigneeSun Nuclear Corporation
InventorsJeffrey M. Kapatoes, Jeffery Simon
Life of this patent
Estimating the term…
Abstract
Systems, methods, and computer software are disclosed for acquiring images during delivery of a radiation beam, the images capturing at least a portion of a shape representative of a radiation field generated by a radiation delivery system that includes a radiation source configured to deliver the radiation beam.
Claims17
A computer program product comprising a non-transitory, machine-readable medium storing instructions which, when executed by at least one programmable processor, cause the at least one programmable processor to perform operations comprising:
- acquiring images during delivery of a radiation beam, the images capturing at least a portion of a shape representative of a radiation pattern generated by a radiation delivery system that includes a radiation source configured to deliver the radiation beam, wherein the images are acquired from a camera aimed at a computer monitor displaying the shape representative of the radiation pattern.
A computer program product comprising a non-transitory, machine-readable medium storing instructions which, when executed by at least one programmable processor, cause the at least one programmable processor to perform operations comprising:
- acquiring images during delivery of a radiation beam, the images capturing at least a portion of a shape representative of a radiation pattern generated by a radiation delivery system that includes a radiation source configured to deliver the radiation beam;
- applying an edge detection algorithm to a radiation pattern present in the images, the edge detection algorithm determining at least one edge of the radiation pattern corresponding to a leaf of a multi-leaf collimator;
- and
- determining a leaf position based at least on a location of the determined edge.
A method comprising:
- placing a graticule with markers that have known dimensions between the markers;
- initiating delivery of a radiation beam;
- imaging the graticule with a radiation detector during delivery of the radiation beam;
- acquiring images, the images capturing at least a portion of the graticule;
- and
- determining a conversion factor based on at least the known dimensions of the graticule and the acquired images.
Dependencies are inferred from the claim text.