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Real-time image guiding method

A real-time image and image-guided technology, which is applied in radiation therapy, X-ray/γ-ray/particle irradiation therapy, treatment, etc., can solve technical difficulties and other problems, and achieve the effect of improving treatment accuracy, low cost, and small implementation difficulty

Pending Publication Date: 2021-12-03
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 guidance system, so the kV-level X-ray image guidance system realizes synchronous real-time imaging technology during the radiation treatment process more difficult

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  • Real-time image guiding method

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Embodiment 1

[0034] Such as figure 1 As shown, the present embodiment provides a method for real-time image guidance, including:

[0035] Step 100, the first ray is emitted to the detection board by the ray generator of the X-ray image guidance system to obtain the first image; the first ray is a kV-level X-ray, and the pulse interval t of the first ray is greater than the Time to probe plate imaging. Specifically, the pulse interval t of the first ray is set by control software, and the ray generator is a pulsed ray generator.

[0036] Step 200, filtering and denoising the first image to obtain a third image.

[0037] Step 300, acquiring a second image; the second image is an image collected by the detection board within the pulse interval t of the first ray.

[0038] Step 400, performing filtering and denoising on the second image to obtain a fourth image.

[0039] Step 500, subtracting the third image from the fourth image to obtain a fifth image.

[0040] In this embodiment, the m...

Embodiment 2

[0042] Applicable rays in this embodiment include various rays such as electron beams, X-rays, and proton beams in actual clinical radiotherapy.

[0043] The technical principle of this embodiment will be described below by using a kV-level X-ray image guidance system to realize real-time image guidance during MV-level X-ray radiotherapy as an example.

[0044] 1. The kV-level X-ray image guidance system chooses to use a pulsed ray generator, that is, the generated X-rays are pulsed. Let the pulse interval of the generated X-ray be t, and set the size of t in the control software to be longer than the time required for the imaging of the detection board.

[0045] 2. During the X-ray irradiation treatment process, the ray generator of the X-ray image guidance system works normally to generate X-rays, and the detection board works normally to generate the first image. It can be seen from the imaging principle that the first image is formed by the combined action of the X-rays g...

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Abstract

The invention discloses a real-time image guiding method, and relates to the technical field of real-time image guiding. The method comprises the steps: emitting a first ray to a detection plate through a ray generator of an X-ray image guiding system to obtain a first image, wherein the first ray is a kV-level X ray, and the pulse interval t of the first ray is greater than the imaging time of the detection plate; carrying out filtering and denoising on the first image to obtain a third image; acquiring a second image, wherein the second image is an image generated by the detection plate within the pulse interval t of the first ray; carrying out filtering and denoising on the second image to obtain a fourth image; and carrying out subtraction on the third image and the fourth image to obtain a fifth image. According to the real-time image guiding method, synchronous real-time X-ray image guiding can be realized in the radiotherapy process, the treatment accuracy is improved, the realization difficulty is low, and the cost is low.

Description

[0001] The present invention is a divisional application titled "a technical method for real-time image guidance", wherein the application number of the parent application is 201910089230.2, and the filing date is 2019.01.30. technical field [0002] The invention relates to the technical field of real-time image guidance, in particular to a real-time image guidance method. Background technique [0003] Radiation therapy (referred to as radiotherapy) is an important method of tumor treatment, and precision radiotherapy is an important development direction in the field of radiotherapy. According to clinical needs, in order to ensure that the radiation is accurately irradiated to the tumor target area during radiotherapy, it is usually necessary to use Image Guided Radiation Therapy (IGRT). Image guidance is to use X-ray and other imaging devices to locate and track the position of the patient's target area before and during treatment, so as to ensure that the radiation is al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
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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