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Dosage-guided positioning device, dosage monitoring device, radiotherapy system and medium

A dose and contrast dose technology, used in radiotherapy, therapy, X-ray/γ-ray/particle irradiation therapy, etc., can solve the problem that the accuracy of image-guided radiotherapy depends on the experience of physicists or technicians, and achieves high universality. performance, ease of work, and increased accuracy

Active Publication Date: 2019-10-01
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a dose-guided positioning device, a dose monitoring device, a radiotherapy system, and a medium to solve the problem that the positioning accuracy of image-guided radiotherapy in the prior art relies too much on the experience of physicists or technicians

Method used

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  • Dosage-guided positioning device, dosage monitoring device, radiotherapy system and medium
  • Dosage-guided positioning device, dosage monitoring device, radiotherapy system and medium
  • Dosage-guided positioning device, dosage monitoring device, radiotherapy system and medium

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Embodiment 1

[0041] The embodiment of the present invention provides a dose guiding positioning device for guiding the positioning according to the dose distribution. The device can be implemented in software and / or hardware, including a processor, such as figure 1 Shown, and the processor is configured to perform the following steps:

[0042] S101. Obtain treatment image data of a target object and reference dose information of an existing reference radiotherapy plan for the target object.

[0043] In order to improve the accuracy of radiotherapy, it is usually necessary to position the target object before radiotherapy, and the position usually includes preliminary position and adjustment. In order to improve the effect of adjusting the positioning, this embodiment first obtains the treatment image data of the target subject who has completed the preliminary positioning, and the reference dose information of the existing reference radiotherapy plan for the target subject.

[0044] Among them, ...

Embodiment 2

[0068] The embodiment of the present invention provides a dose monitoring device, which includes a processor, such as image 3 As shown, the processor is configured to perform the following steps:

[0069] S201: Obtain treatment image data of the target object.

[0070] Among them, the treatment image data in this embodiment may be the currently acquired image data, such as CT (Computed Tomography, CT, electronic computed tomography) images taken by the patient before, during or after the current fractional treatment, PET -CT (Positron Emission Tomography Computed Tomography, referred to as PET-CT, positron emission computer tomography) images, MR (Magnetic Resonance, referred to as MR, magnetic resonance) images and other clinical images or fusion images of multiple clinical images.

[0071] The execution of this step can be triggered by the user, or it can be triggered by the generation of new treatment image data. For example, the system automatically triggers this step when it de...

Embodiment 3

[0088] The embodiment of the present invention provides a radiotherapy system, such as Figure 4 As shown, the radiotherapy system includes a treatment bed 301, a processor 302, and an accelerator device 303. The treatment bed 301 is used to carry a target object whose initial placement is completed; the processor 302 is used to obtain treatment image data of the target object, and the target The subject's existing reference radiotherapy plan; and compare the treatment image data with the reference image data corresponding to the reference radiotherapy plan to obtain the initial offset; and determine the dose information corresponding to the treatment image data according to the initial offset; and according to the treatment image data The corresponding dose information and the dose information corresponding to the reference radiotherapy plan determine the target offset, and control the movement of the treatment bed according to the target offset to complete the final positionin...

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Abstract

The embodiment of the invention discloses a dosage-guided positioning device, a dosage monitoring device, a radiotherapy system and a medium. The dosage-guided positioning device comprises a processor, wherein the processor is used for acquiring therapeutic image data of a target object and reference dosage information of an existing reference radiotherapy plan of the target object, comparing thetherapeutic image data with reference image data corresponding to the reference radiotherapy plan to obtain an initial offset, determining dosage information corresponding to the therapeutic image data as contrast dosage information according to the initial offset, and determining a target offset according to the contrast dosage information and the reference dosage information. The problem that the accuracy of image-guided radiotherapy positioning in the prior art excessively depends on the experience of a physicist or a technician is solved.

Description

Technical field [0001] The embodiment of the present invention relates to the field of medical equipment, in particular to a dose guiding positioning device, a dose monitoring device, a radiotherapy system and a medium. Background technique [0002] In the course of radiotherapy, the patient's tumor usually shrinks gradually during the course of radiotherapy, and the shape of the tumor may also change. If the same position is maintained, changes in the size and shape of the tumor will usually cause the dose distribution received by the patient to be inconsistent with expectations, resulting in missed target areas and excessively high doses to organs at risk. In order to prevent the occurrence of these situations, it is usually necessary to reacquire treatment images of the patient to guide radiotherapy. [0003] However, in the prior art, when radiotherapy is guided by treatment images, it is usually necessary to manually compare the planned image and the treatment image, so as to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N5/10
CPCA61N5/107A61N5/1064
Inventor 周婧劼王益锋赵轲俊彭雄峰王章龙
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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