MRI guided robot radiation treatment system

Abstract

The invention provides an MRI guided robot radiation treatment system. The system comprises a linear accelerator and magnetic resonance imaging equipment, wherein the magnetic resonance imaging equipment has split magnets used for constructing a magnetic field, a treatment space is formed among the split magnets, the linear accelerator is mounted on a robot and is carried by the robot to do motion so as to make rays align at an isocenter point to radiate from the treatment space, an axis of the treatment space passes through the isocenter point, an initial direction of the axis of the treatment space and an axis of a treatment bed are parallel, the split magnets can rotate around an axis which is perpendicular to the ground and passes through the isocenter point and can further rotate around the axis of the treatment space, the linear accelerator and the split magnets are carried by the robot to realize synchronous rotation, and the rays are made to radiate the isocenter point in different directions. The system is advantaged in that isocenter and non-coplanar treatment for patients can be realized, a focus-skin ratio is high, and damage to the patients can be reduced.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to an MRI (magnetic resonance imaging)-guided robot radiotherapy system. Background technique [0002] In the current radiation therapy, most of the widely used image-guided technologies use X-rays for image guidance, which will cause patients to receive more extra X-ray doses and cause greater harm to patients. Magnetic resonance imaging guidance technology has been valued and developed by virtue of the advantage of not causing additional damage to the human body. [0003] In addition, isocenter non-coplanar therapy has become an important development trend, which can make the patient receive a higher radiation dose in the target area, while the radiation dose received by the surrounding normal tissues is lower, so as to protect the normal tissues of the human body as much as possible . [0004] However, the current magnetic resonance image-guided radiation th...

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Problems solved by technology

[0004] However, the current magnetic resonance image-guided radiation therapy systems basically belong to isocenter coplanar therapy, with a relatively low focal skin, which causes great damage to the patient's normal tissue while killing tumor cells.

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