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An MRI-guided radiotherapy system imaging quality control phantom

A radiotherapy, imaging quality technology, applied in the field of radiotherapy system imaging quality control phantom

Active Publication Date: 2020-06-09
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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  • An MRI-guided radiotherapy system imaging quality control phantom
  • An MRI-guided radiotherapy system imaging quality control phantom
  • An MRI-guided radiotherapy system imaging quality control phantom

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0048] 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.

[0049] 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.

[0050] Such as figure 1 and Figure 5As shown, a magnetic resonance-guided radiotherapy system imaging quality...

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Abstract

The invention discloses an imaging quality control phantom for a radiotherapy system guided by magnetic resonance. The diameters of the first cylindrical structure and the second cylindrical structure are 35-45 cm, which can meet the wide range of a special magnetic resonance radiotherapy simulation positioning system. Imaging testing needs. The diameters of the first cylindrical structure and the second cylindrical structure are 35-45 cm, which can meet the needs of imaging detection in a wide range of the dedicated magnetic resonance radiotherapy simulation positioning system. The inside of the first part is hollow, and the wedge-shaped blocks are arranged circularly along the axis of the first cylindrical structure. The wedge-shaped structure is a solid material, which is imaged in a magnetic resonance image and used to test the limit resolution of the magnetic resonance system. The test fluid fills the interior of the first part. The third part is a solid structure, in which several hole-shaped grooves with different diameters are arranged, filled with test liquid, and used for testing the spatial resolution of the magnetic resonance system. The hollow square cylinders of the second and fourth parts are used to test 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 Patents(China)
IPC IPC(8): G01R33/58
CPCA61N5/1039A61N5/1049A61N2005/1055A61N2005/1092
Inventor 邱建峰戎懿曹旻松陈迢
Owner TAISHAN MEDICAL UNIV
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