Radiotherapy plan generation system and storage medium

A technology for generating systems and plans, applied in mechanical/radiation/invasive treatments, etc., can solve the problem of low quality of radiotherapy plans, and achieve the effect of optimizing quality and improving optimization speed.

Active Publication Date: 2020-01-17
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a radiotherapy plan generation system and storage medium to solve the problem of low quality of the radiotherapy plan generated by the radiotherapy plan generation system in the prior art

Method used

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  • Radiotherapy plan generation system and storage medium
  • Radiotherapy plan generation system and storage medium
  • Radiotherapy plan generation system and storage medium

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Experimental program
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Embodiment 1

[0033] figure 1 It is a structural block diagram of the radiotherapy plan generation system provided by Embodiment 1 of the present invention. The technical solution of this embodiment is applicable to the case of optimizing the dose volume constraint condition by optimizing the dose constraint volume, thereby optimizing the dose distribution of the radiotherapy plan. The system can be realized by means of software and / or hardware, and includes a memory 11, a processor 12, and a computer program stored on the memory 11 and operable on the processor 12, and when the processor 12 executes the computer program accomplish figure 2 The steps of the radiotherapy plan generation method in :

[0034] S101. Obtain the radiotherapy plan to be optimized and the optimization target of the radiotherapy plan to be optimized, the optimization target includes the dose volume constraint condition corresponding to the target ROI, and the dose volume constraint condition includes the number N...

Embodiment 2

[0056] Embodiment 2 of the present invention provides a radiotherapy plan generation system. In this embodiment, the preset distance reference is limited on the basis of the foregoing embodiments. Accordingly, the system's processor implements additional Figure 5 The steps of the radiotherapy plan generation method in :

[0057] S201. Obtain the radiotherapy plan to be optimized and the optimization target of the radiotherapy plan to be optimized. The optimization target includes the dose volume constraint condition corresponding to the target ROI, and the dose volume constraint condition includes the number N of voxels in the dose constraint volume, where N is Natural number.

[0058] S2011. Keeping the direction of each influencing interest relative to the target ROI unchanged, and keeping the position of one of the influencing ROIs that meet the preset reference conditions unchanged, stretching or shrinking other influencing ROIs The distance between the region of inter...

Embodiment 3

[0073] Embodiment 3 of the present invention provides a radiotherapy plan generating system. In this embodiment, the distance reference is limited on the basis of the foregoing embodiments. Accordingly, the system's processor implements additional Figure 7 The steps of the radiotherapy plan generation method in :

[0074] S301. Obtain the radiotherapy plan to be optimized and the optimization target of the radiotherapy plan to be optimized, the optimization target includes the dose volume constraint condition corresponding to the target ROI, and the dose volume constraint condition includes the number N of voxels in the dose constraint volume, wherein the N is a natural number.

[0075] S3011. Obtain the dose drop trend of the radiotherapy plan template corresponding to the radiotherapy plan to be optimized.

[0076] Wherein, the radiotherapy plan template may be a template of a radiotherapy plan for the same type of tumor formulated by the user, or may be an existing radi...

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Abstract

The embodiment of the invention discloses a radiotherapy plan generation system and a storage medium. The system includes a memory, a processor and a computer program which is stored on the memory andcan run on the processor. When the processor executes a program, the following steps are achieved: a radiotherapy plan to be optimized and the optimization target of the radiotherapy plan to be optimized are acquired, the optimization target comprises a dose volume constraint condition corresponding to a target region of interest, and the dose volume constraint condition comprises a voxel numberN of a dose constraint volume; the distance from each voxel of the target region of interest to the affected region of interest affecting the dose distribution of the target region of interest is calculated; the N voxels meeting the distance condition are taken as the dose constraint volume of the target region of interest to update the dose volume constraint condition; and the dose distribution of the radiotherapy plan is determined according to the optimization target containing the updated dose volume constraint condition. The problem that a radiotherapy plan generated by a radiotherapy plan generation system in the prior art is low in quality is solved.

Description

technical field [0001] Embodiments of the present invention relate to the field of computer software, and in particular to a radiotherapy plan generation system and a storage medium. Background technique [0002] The optimization process of radiotherapy plan is mainly the design of dose volume optimization model. Doctors or physicists set expected minimum dose requirements or maximum dose requirements for the Region of Interest (ROI) in radiotherapy planning, including tumor regions and organs at risk, and may only require a part of the volume of the region to reach Minimum dose or maximum dose requirements, for example, for a certain target area, the physicist requires more than 95% of the volume in this area to meet a certain minimum dose requirement, or for a certain organ at risk, requires that less than 30% of the volume in this area is allowed to exceed a certain maximum dose Requirements, that is, more than 70% of the volume reaches the maximum dose requirement. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G16H20/40
CPCG16H20/40Y02T10/40
Inventor 赵轲俊彭雄峰
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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