Method and device for reducing irradiation deviations caused by respiration during radiotherapy

A radiation therapy and deviation technology, applied in the physical field, to achieve the effects of improving the treatment effect, reducing the deviation of irradiation position accuracy, and high treatment gain ratio

Inactive Publication Date: 2012-10-03
GUANGDONG SPACO ACCELERATOR TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for reducing the irradiation deviation caused by breathing in radiotherapy. The method for reducing the irradi

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  • Method and device for reducing irradiation deviations caused by respiration during radiotherapy
  • Method and device for reducing irradiation deviations caused by respiration during radiotherapy
  • Method and device for reducing irradiation deviations caused by respiration during radiotherapy

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Embodiment 1

[0016] Such as figure 1 As shown, the method for reducing the irradiation deviation caused by breathing in radiation therapy of the present invention includes a process of controlling the timing of the beam output of the radiation therapy equipment 1, wherein, in the process of controlling the timing of the beam output of the radiation therapy equipment 1, tracking The chest movement of the patient 2 when breathing, controls the timing of the start and end of the radiation beam output of the radiotherapy equipment 1 according to the trajectory of the chest movement of the patient 2 when breathing.

[0017] Further, in the process of controlling the timing of the beam output of the radiotherapy equipment 1, a reference marker is used to follow the chest movement of the patient 2 when breathing, and an image acquisition device is used to collect the moving image of the reference marker, and the The moving image is transmitted to a computer, and the computer is used to calculate ...

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Abstract

The invention discloses a method for reducing irradiation deviations caused by respiration during radiotherapy. During the process of controlling the beam emerging time of radiation therapy device, chest motion of a patient during respiration can be tracked, and the starting and the ending times of the radiation therapy device can be controlled according to the tracks of the chest motion of the patient during respiration. The invention further provides a device for achieving the method, wherein the device comprises a radiation therapy device, a camera and a computer. A luminous reference marker is used for following the up-and-down motions of the chest of the patient during the respiration, the camera is used for collecting the motion images of the luminous reference marker in real time, the computer is used for computing the motion tracks, a beam emerging start point and a beam emerging end point of the radiation therapy device can be determined according to motion tracks, the method provided by the invention can meet the requirements of smooth aspiration of the patient, irradiation position precision deviations caused by offset of tumor position during aspiration are reduced, the therapeutic effect is improved, therefore, a high therapeutic gain ratio can be achieved, and the process of radiotherapy is enabled to be more humanized.

Description

Technical field: [0001] The present invention relates to the field of physics, in particular to radiotherapy equipment, in particular to the precise control technology of radiotherapy equipment, in particular to a method and device for reducing irradiation deviation caused by breathing in radiotherapy. Background technique: [0002] In the prior art, during radiotherapy, the patient's breathing can cause tumor displacement. At present, the commonly used solutions are: (1) let the patient take a deep breath and hold it during irradiation; (2) suppress the patient's breathing to make it shallow; (3) expand the irradiation range. The above method either makes the patient in a very uncomfortable state during the whole treatment process, or causes the consequences of expanding the irradiation range, resulting in a reduction in the treatment effect. Invention content: [0003] The purpose of the present invention is to provide a method for reducing the irradiation deviation cau...

Claims

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Application Information

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IPC IPC(8): A61N5/10
Inventor 杜锡九
Owner GUANGDONG SPACO ACCELERATOR TECH
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