Dynamic field monitoring system in intensity modulated radiotherapy beams
AssigneeNew York University
InventorGabor Jozsef
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Abstract
Systems and method for monitoring an actual shape of a radiation therapy beam. The radiation therapy beam passes through a scintillation sheet. A light field emitted by the scintillation sheet is captured by a camera. Image data captured by the camera is processed to generate a processed image of the actual shape of the radiation therapy beam. The processed image of the actual shape of the radiation therapy beam may be compared to a programmed shape of the radiation therapy beam.
Claims20
A method for monitoring an actual shape of a radiation beam during a modulated radiotherapy session, the method comprising:
- applying, by a treatment machine, the radiation beam to a scintillation sheet;
- capturing, by a camera, an image of a scintillating light field on the scintillation sheet;
- transmitting the image to a processing circuit;
- performing, by the processing circuit, image processing on the image;
- and
- generating a processed image of the actual shape of the radiation beam.
A dynamic field monitoring device for monitoring a shape of a radiation beam during a modulated radiotherapy session, the dynamic field monitoring device comprising:
- a scintillation sheet positioned in a path of the radiation beam;
- a camera positioned to receive light emitted by the scintillation sheet;
- a processor configured to receive image data from the camera, process the image data, and generate an image of the shape of the radiation beam corresponding to the received image data;
- and
- a user interface configured to display a comparison of the actual shape and a programmed shape of the radiation beam,
- wherein the dynamic field monitoring device is connectable to a treatment machine configured to controllably emit the radiation beam having a selected shape,
- wherein the processor is in communication with the camera and the treatment machine.
A non-transitory computer-readable medium having instructions thereon that cause one or more processors to perform operations, the operations comprising:
- receiving an image of a scintillating light field on a scintillation sheet;
- performing image processing on the image;
- and
- generating a processed image of an actual shape of a radiation beam.
Dependencies are inferred from the claim text.