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Method and system for high accurate positioning for radiotherapy

A radiotherapy, high-precision technology, applied in the field of radiotherapy high-precision fast positioning and system, can solve the problems of affecting the treatment effect, low positioning accuracy, slow speed, etc., to achieve high positioning accuracy, high degree of automation, fast positioning effect

Inactive Publication Date: 2005-02-23
INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

[0003] The purpose of the present invention is to propose a high-precision and fast positioning method and method for positioning each time in the fractional treatment of existing radiotherapy, and the positioning accuracy is not high and the speed is very slow, which affects the treatment effect. system

Method used

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  • Method and system for high accurate positioning for radiotherapy
  • Method and system for high accurate positioning for radiotherapy
  • Method and system for high accurate positioning for radiotherapy

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with accompanying drawing and embodiment:

[0015] see figure 1 , figure 2 , the high-precision fast positioning system of the present invention includes a pair of cameras 1, three miniature pan-tilts 2, three red visible light lasers 3, an image acquisition and processing device 4, a pan-tilt controller 5, and a treatment bed drive interface software 6, Described image collection and processing device is made up of high-performance PC, acquisition card 7, positioning point coordinate calculation software 8, pan-tilt drive software 9, and two video cameras 1 are respectively installed on the treatment room ceiling above the front and top of the accelerator so that the entire patient's The body is all within the field of vision, and the three red visible light lasers 3 are respectively fixed in the three miniature pan-tilts 2, and are respectively installed on the upper front, upper left front, and up...

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Abstract

A method and system for high-precision fast positioning of patient body for radiotherapy is disclosed. Said system is composed of a pair of cameras, 3 miniature movable tables, 3 visual red lasers, image acquiring and processing unit, and bed driving software. After the patient body is positioned for the first time, its precise coordinate is recorded. For the latter positioning, the coordinate of patient body compared with the recorded one and the bed is moved for making them matched.

Description

technical field [0001] The invention relates to an auxiliary facility for radiation therapy of a patient, in particular to a positioning system for radiation therapy. Background technique [0002] At present, the speed and accuracy of the patient's body position recovery in radiotherapy fractionation directly affect the therapeutic effect and efficiency of precise radiotherapy. In the domestic treatment system, the irradiation field is usually tattooed on the patient's body after CT simulation. In actual treatment, the irradiation field tattooed on the patient's body is calibrated each time by laser to restore the body position during CT simulation. In this way, when setting the position, the accuracy can only be qualitatively judged by the doctor's experience and the degree of position recovery and the time is long. Among the newly developed positioning methods in foreign countries, there is a way to place markers on the patient, such as markers that only reflect infrared ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N5/00A61N5/067
Inventor 陶声祥吴宜灿
Owner INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
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