38 results about "Radiation therapy fields" patented technology

The invention discloses a radiotherapy radiation field performance monitoring and adjusting device based on video, which belongs to the field of radiotherapy and comprises a video imaging system, a motion control system and a computer work station system. The video imaging system comprises a fluorescent screen covered with a metal plate, a video imaging system machine case, a video camera and a lighting device, wherein the video camera is positioned right in the center of the metal plate and the fluorescent screen, the position of the video camera is fixed, and the video camera is connected with the computer work station system through a universal series bus (USB) interference. The computer work station system comprises an image matching system and an adjusting guiding three-dimensional animation system. The motion control system is connected with the video imaging system. The radiotherapy radiation field performance monitoring and adjusting device based on video has the advantages of effectively resolving the problems that existing radiotherapy light field repeatability and centers of radiotherapy equipment and the like are difficult to detect and adjust quickly, and can quickly detect, guide and adjust in real time whether radiotherapy radiation field coincides lamp light field, and whether centers of radiotherapy equipment machinery and the like deviate.

The invention discloses a technical method for real-time image guidance. The achievement difficulty is small and the cost is low; synchronous real-time X-ray image guidance can be achieved in the process of radiation therapy, the precision of treatment is improved, a pulsed ray generator is selected, during MV level X-ray irradiation treatment, the ray generator of the kV level X-ray image guidingsystem works normally, X-rays are generated, a detecting plate works normally to generate an image P1, during the pulse interval period of the X-ray image guiding system, system control software controls a detection board to work normally, an image P2 is generated, subtraction operation is conduced on the image P1 obtained in the second step and the image P2 obtained in the third step to obtain an image P3 which is generated by X-ray effect generated by the X-ray image guiding system, a scatter line effect produced by the radiation treatment of a MV level ray is subtracted and removed, the image P3 can display normal anatomical information for image guiding operation of the radiation therapy, and the method can be widely applied in the field of the radiation therapy.