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Three-dimensional finite element grid accurate positioning radiotherapy system

A radiotherapy and precise positioning technology, used in radiotherapy, therapy, X-ray/γ-ray/particle irradiation therapy, etc., to achieve the effect of reducing the probability of occurrence, reducing radiation complications, and accurately killing cancer cells

Pending Publication Date: 2022-02-11
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

A more ideal treatment method is to use some technical means to monitor the changes in the target area, and take corresponding measures to solve it. At present, the relevant equipment and technology are still in the state of research and exploration

Method used

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  • Three-dimensional finite element grid accurate positioning radiotherapy system
  • Three-dimensional finite element grid accurate positioning radiotherapy system
  • Three-dimensional finite element grid accurate positioning radiotherapy system

Examples

Experimental program
Comparison scheme
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Embodiment

[0046] refer to Figure 1-4 . Firstly, lay the patient flat on the flat bed with the body lying flat, put the hands on both sides of the body, and relax the shoulders naturally, and then check whether the patient’s eye frames are on the same level, and the nasal septum, cervical spine, and sternum are in a straight line to ensure that the patient as a whole sleeps as straight as possible Maintain repeatability, avoid large angle errors from the source, and proceed to the next step after entering the operation room.

[0047] refer to figure 2 , a three-dimensional finite element grid precise positioning radiation therapy system, the system includes an infrared motion capture device 1, an optical fiber tumor imaging device 2, a finite element positioning workstation 6, an accelerator radiation therapy device 10 and an accelerator control device 11, the accelerator radiation therapy device 10 includes an electron linear accelerator 3 , a treatment couch 4 , and a hand controll...

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Abstract

The invention relates to a three-dimensional finite element grid accurate positioning radiotherapy system, which comprises an infrared motion capture device, an optical fiber tumor imaging device, a finite element positioning workstation, an accelerator radiotherapy device and an accelerator control device, wherein the accelerator radiotherapy device comprises an electron linear accelerator, a treatment bed and a hand controller; the accelerator control device comprises a beam-out control device, a shielding door control device and a scanning gun; the infrared motion capturing device is used for calculating body surface fluctuation change caused by human body breathing motion in real time; the optical fiber tumor imaging device is used for calculating two-dimensional distribution of hemoglobin concentration and oxygen saturation in human tissues and realizing screening and positioning of tumor tissues; the accelerator radiotherapy device is used for radiotherapy; the accelerator control device is used for controlling the action of the electron linear accelerator. According to the invention, the whole radiotherapy process is more accurate and visual, and patient position deviation caused in the radiotherapy positioning and resetting process is avoided.

Description

technical field [0001] The invention relates to the technical field of radiation therapy, in particular to a three-dimensional finite element grid precise positioning radiation therapy system. Background technique [0002] In the traditional tumor radiotherapy process, the simulation-guided design of the treatment plan is completed based on the anatomical images of the tumor patients before treatment. By making the radiation dose distribution as consistent as possible with the shape of the target area, the surrounding normal tissue is protected. However, as the treatment process continues, the patient's anatomical structure and the shape of the target area will change, which is not related to the treatment. This makes the shape of the target area in the body and the positional relationship with the surrounding organs at risk may change to varying degrees during the process of patients receiving fractionated treatment, which affects the accuracy of dose distribution. [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N5/10A61B5/1455
CPCA61N5/1049A61B5/14551
Inventor 赵改平金淼许海飞夏小淇张翠述蒋哲华何胜兰吴丽敏许青陆维
Owner UNIV OF SHANGHAI FOR SCI & TECH
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