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Water tank measuring method and system for simulating influence on radiation dose by organ motion

A measurement system and radiation dose technology, applied in radiation therapy, treatment and other directions, can solve the problems of difficulty in accurately simulating the influence of measurement dose, single use mode, slow movement speed, etc., achieving low cost, easy maintenance, and fast response speed. Effect

Inactive Publication Date: 2014-05-14
戴建荣 +1
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

The motion platform generally can only move in one or two dimensions, but most of the actual organ movements are in three dimensions, which limits its use in many analog measurements to a certain extent
At the same time, it has a long response time and slow movement speed, and it is difficult to accurately simulate and measure the influence of some rapidly changing organ movements on the dose
The sports phantom can better simulate the radiation dose received by the movement of specific parts of the organs, but it is generally expensive, and a phantom can only simulate specific parts, and the use mode is relatively single and not flexible enough

Method used

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  • Water tank measuring method and system for simulating influence on radiation dose by organ motion
  • Water tank measuring method and system for simulating influence on radiation dose by organ motion
  • Water tank measuring method and system for simulating influence on radiation dose by organ motion

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] The system is composed of the main water tank part and the operation control part.

[0024] The main water tank part mainly includes a plexiglass box 1, a detector 2, a stepping motor 3, a guide rail 4 and a bracket 5;

[0025] The material used for the plexiglass box is transparent plexiglass. During the use of the system, a certain amount of water is injected into the plexiglass box as needed, so that the CT electron density around the detector is closer to the environment in the human body.

[0026] It can be selected as a point, line, surface, and body detector according to the needs, and can separately study the influence of the movement of the point, line, surface, and body in the organ to be measured on the dose.

[0027] The stepper motor is an open-loop control element that converts electric pulse signals into angular displacement or l...

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Abstract

The invention discloses a water tank measuring method and system for simulating an influence on a radiation dose by an organ motion. The water tank measuring system comprises a tank body, a detector, a detector motion guiding rack, and a driving device; and the driving device is in transmission connection with the detector, so that the detector is driven to make motion relatively to the tank body under the guidance of the detector motion guiding rack. According to the invention, the water tank measuring system has characteristics of low cost, good universality, high motion precision, fast respond speed, and easy maintenance and the like. Influences on doses by three-dimensional motions of various organs can be simulated and studied precisely; and the planning target and the radiation therapy plan can be corrected, thereby improving precision of the radiation therapy.

Description

technical field [0001] The invention relates to the field of precise radiation therapy for tumors, in particular to a water tank measurement method and system for simulating the influence of organ movement on radiation dose. Background technique [0002] Precise radiotherapy is a tumor treatment method based on high-quality CT, MRI or positron emission computed tomography images, which combines radiotherapy medicine with computer technology and physics. The entire radiotherapy process is controlled by a computer. It is An integrated treatment technology featuring precise positioning, precise planning, precise positioning, and precise treatment. The application of precise radiotherapy can increase the tumor irradiation dose while reducing the dose to surrounding normal tissues, thereby improving the tumor control rate and reducing the side effects of radiotherapy. [0003] However, tumors in the chest and abdomen and some normal tissue structures will move with the breathing...

Claims

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Application Information

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IPC IPC(8): A61N5/00
Inventor 戴建荣苗俊杰
Owner 戴建荣
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