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Magnetic resonance image-induced radiation therapy system

A technology of magnetic resonance imaging and radiation therapy, applied in radiation therapy, therapy, X-ray/γ-ray/particle irradiation therapy, etc. Angle irradiation and other issues, to facilitate radiation dose and treatment planning, reduce complexity and uncertainty, and improve the effect of radiotherapy

Pending Publication Date: 2018-05-11
安徽福晴科技集团有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this system has the following main limitations: First, the main magnetic field acts on the radiation beam, especially the particle radiation beam, which is subjected to magnetic force, which causes the radiation beam to be deflected, resulting in a decrease in the accuracy of treatment and a greater risk. Therefore, generally This kind of magnetic resonance is a magnet with low field strength to prevent the sharp deflection of the treatment ray reflection and affect the accuracy of treatment
[0006] However, the main disadvantage of the existing parallel scheme is that it can only illuminate from a single angle
If multi-angle irradiation is required for the tumor, the patient needs to be rotated, which increases the pain of the patient and the uncertainty of treatment, and reduces the efficiency and effect of treatment

Method used

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Effect test

Embodiment 1

[0039] refer to figure 1 As shown, it is a magnetic resonance image-guided radiotherapy system provided in Embodiment 1 of the present application, wherein the magnetic resonance image-guided radiotherapy system includes:

[0040] The radiotherapy assembly 100 and the magnetic resonance assembly 200 are fixedly arranged relative to each other in the horizontal direction;

[0041] The radiotherapy assembly 100 is used to generate a therapeutic radiation beam 300;

[0042] The magnetic resonance assembly 200 includes a first magnet 210 and a second magnet 220 oppositely arranged in the horizontal direction, the first magnet 210 has a first through hole, the second magnet 220 has a second through hole, and the Both the first through hole and the second through hole are arranged on the optical path of the treatment ray beam 300, wherein the direction of the treatment ray beam 300 is parallel to the direction of the main magnetic field 400 of the magnetic resonance assembly;

[0...

Embodiment 2

[0055] refer to figure 2 As shown, it is a magnetic resonance image-guided radiotherapy system provided in Embodiment 2 of the present application, wherein the magnetic resonance image-guided radiotherapy system includes:

[0056] The radiotherapy assembly 100 and the magnetic resonance assembly 200 are fixedly arranged relative to each other in the horizontal direction;

[0057] The radiotherapy assembly 100 is used to generate a therapeutic radiation beam 300;

[0058] The magnetic resonance assembly 200 includes a first magnet 210 and a second magnet 220 oppositely arranged in the horizontal direction, the first magnet 210 has a first through hole, the second magnet 220 has a second through hole, and the Both the first through hole and the second through hole are arranged on the optical path of the treatment ray beam 300, wherein the direction of the treatment ray beam 300 is parallel to the direction of the main magnetic field 400 of the magnetic resonance assembly;

[...

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Abstract

The invention discloses a magnetic resonance image-induced radiation therapy system. Magnetic resonance imaging is utilized for carrying out image guiding in a radiotherapy process, and the advantagesof relatively high soft tissue imaging resolution and no ionization radiation hazard are realized; a therapy ray bundle is parallel to the direction of a main magnetic field, so that influence of themain magnetic field on the therapy ray bundle can be reduced to the utmost extent; hardware of a magnetic resonance component and a radiotherapy component can hold still respectively, and irradiatingtreatment in different angles is carried out by adjusting a position of a patient; a support and the magnetic resonance component are compatible, radio frequency interference can not be produced to the magnetic resonance imaging, and in a process that the patient is subjected to treatment in a standing or sitting posture, a position of a lesion always can be in a range of the therapy ray bundle by adjusting the position of the support; and a huge magnet of the magnetic resonance component does not need to be rotated, so that mechanical design complexity is reduced, field intensity of the designed main magnetic field can be improved, and a tumor imaging region is accurately divided.

Description

technical field [0001] The invention relates to the technical field of medical equipment, and more specifically, to a radiotherapy system guided by magnetic resonance images. Background technique [0002] Radiation therapy technology is one of the important and main means of current tumor treatment. Most cancer patients will receive radiation therapy during the treatment process. At present, the main therapeutic sources of tumor radiotherapy can be divided into radioactive substances such as cobalt, radium, etc., and radioactive sources produced by particle acceleration equipment such as protons and heavy ions. In the current popular radiotherapy systems, the widely used image-guided technologies are B-ultrasound and CT, but the imaging resolution of ultrasound to soft tissues such as tumors is very low, and CT not only has extra ionization damage from X-rays, but also other Structural imaging of soft tissues is also less discernible. [0003] The latest image-guided radia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N5/10
CPCA61N5/1031A61N5/1039A61N5/1045
Inventor 周玉福张晴罗鹏辉祁甫浪江河峻甄博文王长亮张德恒陶进绪智德波徐莉
Owner 安徽福晴科技集团有限公司
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