Methods, systems and computer readable mediums for light field verification on a patient surface
AssigneeSiemens Healthineers International AG
InventorsMartin Sabel, Michael Huber
Life of this patent
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Abstract
At least one example embodiment provides a method including obtaining a first image, the first image including a light field on a patient, the light field being generated by a treatment system; obtaining a treatment plan outline, the treatment plan outline including an area of the patient for a treatment; determining positioning information based on the first image and the treatment plan outline, the positioning information including an indicator of a position of the treatment system with respect to the patient; and controlling the treatment system based on the positioning information.
Claims16
A method comprising:
- projecting a light field through a collimator of a treatment system, the light field being projected onto skin of a patient to illuminate a region of the skin of the patient corresponding to a radiation treatment field;
- obtaining a first image, the first image including the light field on the patient, the light field being generated by the treatment system;
- obtaining a treatment plan outline, the treatment plan outline including an area of the patient for a treatment;
- obtaining a three-dimensional (3D) reference surface, the treatment plan outline being projected onto the 3D reference surface and the 3D reference surface being a 3D surface image of the patient;
- determining positioning information based on the first image and the treatment plan outline by projecting the treatment plan outline onto the first image, the projecting the treatment plan outline onto the first image including
- registering the 3D reference surface to the first image, and
- determining a cross-section of each ray of the treatment plan outline with the first image to transform contour points of the 3D reference surface to points on the first image;
- and
- controlling the treatment system based on the positioning information,
- wherein the positioning information includes an indicator of a position of the treatment system with respect to the patient.
A system comprising:
- processing circuitry configured to cause the system to,
- project a light field through a collimator of a treatment system, the light field being projected onto skin of a patient to illuminate a region of the skin of the patient corresponding to a radiation treatment field
- obtain a first image, the first image including the light field on the patient, the light field being generated by the treatment system,
- obtain a treatment plan outline, the treatment plan outline including an area of the patient for a treatment,
- obtain a three-dimensional (3D) reference surface, the treatment plan outline being projected onto the 3D reference surface and the 3D reference surface being a 3D surface image of the patient,
- determine positioning information based on the first image and the treatment plan outline by projecting the treatment plan outline onto the first image, the projecting the treatment plan outline onto the first image including registering the 3D reference surface to the first image, and
- determining a cross-section an intersection of each ray of the treatment plan outline with the first image to transform contour points of the 3D reference surface to points on the first image, and
- control the treatment system based on the positioning information, wherein the positioning information includes an indicator of a position of the treatment system with respect to the patient.
Dependencies are inferred from the claim text.