Technical method for real-time image guidance

An image-guided, real-time image technology, applied in radiation therapy, X-ray/γ-ray/particle irradiation therapy, treatment, etc., can solve problems such as high technical difficulty, and achieve the effect of improving accuracy, achieving low difficulty and low cost

Inactive Publication Date: 2019-04-19
江苏伽玛星医疗服务有限公司
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Problems solved by technology

The scattered rays produced by the MV-level rays of radiotherapy will have a greater impact on the signal acquisition and imaging of the kV-level X-ray image gui

Method used

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Embodiment Construction

[0013] The applicable rays of the present invention in actual clinical radiotherapy include electron rays, X rays, proton rays and other rays.

[0014] The principle of the technology of the present invention will be described below by taking an example of using a kV-level X-ray image guidance system to implement real-time image guidance during an MV-level X-ray radiotherapy process.

[0015] In the present invention, a pulsed ray generator is selected in the kV-level X-ray image guidance system, that is, the generated X-rays are in a pulsed manner. Let the pulse interval of the generated X-rays be t. Set the size of t in the control software to be greater than the time required to image the probe plate.

[0016] 1. During the X-ray irradiation treatment, the ray generator of the X-ray image guidance system works normally to generate X-rays, the detection board works normally, and the image P1 is generated. It can be known from the imaging principle that the image P1 is form...

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Abstract

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.

Description

technical field [0001] The invention relates to a technical method for real-time image guidance, which belongs to the technical field of radiotherapy. Background technique [0002] Radiation therapy (abbreviated as radiotherapy) is an important tumor treatment method, and precision radiotherapy is an important development direction in the field of radiotherapy. According to clinical needs, in the process of radiotherapy, Image Guided Radiation Therapy (IGRT) is usually used to ensure that the radiation is accurately irradiated on the tumor target area. Image guidance is to locate and track the position of the patient's target area before and during the treatment through imaging devices such as X-rays to ensure that the radiation is always accurately irradiated on the tumor target area, so that the normal organs around the tumor receive the lowest possible exposure. . [0003] At present, the image guidance used in the radiotherapy industry mainly includes nuclear magnetic ...

Claims

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Application Information

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IPC IPC(8): A61N5/10
CPCA61N5/103A61N5/1049A61N2005/1061A61N2005/1092
Inventor 张文山
Owner 江苏伽玛星医疗服务有限公司
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