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Multi-blade collimator initialization method and radiotherapy system

A technology of a multi-leaf collimator and an initialization method, applied in the medical field, can solve the problems of long time and achieve the effect of short initialization time

Active Publication Date: 2018-06-01
SHANGHAI UNITED IMAGING HEALTHCARE
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Problems solved by technology

[0005] In the traditional initialization process, all initialization processes must be performed serially, that is, the next blade can only be initialized after the initialization of one blade is completed, which takes a long time

Method used

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  • Multi-blade collimator initialization method and radiotherapy system
  • Multi-blade collimator initialization method and radiotherapy system
  • Multi-blade collimator initialization method and radiotherapy system

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Embodiment Construction

[0075] In order to make the object, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the technical solution of the present invention, and are not intended to limit the technical solution of the present invention.

[0076] see figure 1 , an embodiment of the present invention provides a radiotherapy system 100 , and the radiotherapy system 100 includes a linear accelerator 10 and a bed assembly 20 . The linear accelerator 10 is used to generate beams (electron beams or X-rays) of high energy level (such as megavolt level) so as to treat the target area (tumor area), and it includes a frame 11 and is relatively arranged on the frame 11. The treatment head 12 and the electronic portal imaging device 13 (Electronic Por...

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Abstract

The invention provides a multi-blade collimator initialization method, wherein the multi-blade collimator comprises a box body and blades arranged in the box body in parallel. The multi-blade collimator initialization method comprises the steps of using a correction switch is for correcting the conversion relation between the blade position and a corresponding main encoder value and an auxiliary encoder value, sequentially moving the blades to a position triggering the correction switch, recording a corresponding main encoder value and an auxiliary encoder value at the trigger moment, correcting the conversion relation between the blade position and the corresponding main encoder value according to the position of the blades at the triggering moment and the corresponding main encoder value, and correcting the conversion relation between the position of the blades and the corresponding auxiliary encoder value according to the position of the blades at the triggering moment and the corresponding auxiliary encoder value. The blade position determined by the multi-blade collimator initialization method is more accurate. The invention further provides a radiotherapy system and a computer readable storage medium.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to an initialization method of a multi-leaf collimator, a radiotherapy system and a computer-readable storage medium. Background technique [0002] The multi-leaf collimator is an important component of the radiation head of medical radiation therapy equipment. The multi-leaf collimator usually includes a box body arranged opposite to each other and two sets of leaves arranged in the box body. A radiation field of a specific shape is formed by the movement of the two sets of leaves so as to perform radiotherapy on the tumor area. Therefore, whether the blade position is accurate or not has a great influence on radiation therapy. [0003] The absolute position of the blades in the radiation therapy system depends on the absolute position of the cabinet in the radiation therapy system and the relative position of the blades to the cabinet. In order to ensure that the leaves can acc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N5/10
CPCA61N5/1045
Inventor 马波琪佟留住李亚男
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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