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Radiotherapy system imaging quality control phantom guided by magnetic resonance

A radiotherapy, imaging quality technology used in radiotherapy, therapy, X-ray/γ-ray/particle irradiation therapy, etc.

Active Publication Date: 2019-02-19
TAISHAN MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most importantly, some dedicated radiotherapy simulation positioning MRI systems require the magnet to have an opening for the electron beam of the linear accelerator to pass through. This special design cannot be tested with a small-sized detection phantom.

Method used

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  • Radiotherapy system imaging quality control phantom guided by magnetic resonance
  • Radiotherapy system imaging quality control phantom guided by magnetic resonance
  • Radiotherapy system imaging quality control phantom guided by magnetic resonance

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Embodiment Construction

[0049] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0050] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0051] Such as figure 1 and Figure 5As shown, a magnetic resonance-guided radiotherapy system imaging quality...

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Abstract

The invention discloses a radiotherapy system imaging quality control phantom guided by magnetic resonance. The diameters of a first cylindrical structure and a second cylindrical structure are 35 to45 cm so that the demand of the wide range imaging detection of a dedicated magnetic resonance radiotherapy simulation positioning system can be satisfied. The internal portion of a first portion is hollow, and wedge blocks are annularly arranged along the axis of a first cylindrical structure. A wedge structure is an entity material, is imaged in a magnetic resonance image and is used for testinga magnetic resonance system limit resolution. A test liquid fills the internal portion of a first portion. A third portion is an entity structure, and the internal portion is provided with several hole form grooves with unequal diameters and is filled with the test liquid so as to test the spatial resolution of a magnetic resonance system. The hollow square cylinders of a second portion and a fourth portion are used for testing the geometric distortion of the magnetic resonance system in the magnetic resonance image.

Description

technical field [0001] The invention belongs to the field of magnetic resonance radiotherapy, and in particular relates to an imaging quality control phantom of a radiotherapy system guided by magnetic resonance. Background technique [0002] MRI has good soft tissue contrast without ionizing radiation damage caused by X-rays. Ideal for positioning imaging of patients requiring radiation physiotherapy. With the improvement of multi-mode system integration technology, the integration of magnets, electron beam equipment, and cobalt-60 equipment has gradually been realized. More and more integrated magnetic resonance radiotherapy simulation positioning systems have come out and been put into clinical application, such as: ViewRay equipment (0.35T magnetic field + cobalt 60 system), MRI-Linac equipment (1.5T magnetic field 6MV Linac system) and independent positioning Use a large-aperture flat-bed magnetic resonance system, etc. [0003] Compared with the traditional magnetic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N5/10
CPCA61N5/1039A61N5/1049A61N2005/1055A61N2005/1092
Inventor 邱建峰戎懿曹旻松陈迢
Owner TAISHAN MEDICAL UNIV
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