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Online radiotherapy plan quality control system and method

A quality control method and control system technology, applied in the online radiotherapy planning quality control system and its control field, can solve problems such as inability to cover radiotherapy online adjustment methods, changing patient conditions, and inability to judge quickly

Inactive Publication Date: 2019-08-30
ZHANGJIAGANG MEDICAL INSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] It is well known in the art that during the implementation of clinical radiotherapy planning, the conditions of patients are changeable, diverse and complex.
The methods proposed in the above literatures cannot cover all online radiotherapy adjustment methods
And various online adjustment methods have their own characteristics. For example, the method of moving the bed is simple to implement and takes a short time; online plan re-optimization may obtain a better plan, but it takes more time
Clinically, doctors are often unable to quickly judge which online adjustment method is needed for the current case

Method used

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  • Online radiotherapy plan quality control system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] An online radiotherapy planning quality control system, the system includes: a data input and output module, an adaptive planning module, and an online sketch modification tool.

[0082] The methods required by the online radiotherapy planning quality control system include: an image deformation registration method, an online adjustment method, and a dose calculation method.

[0083] in,

[0084] The data input and output module is responsible for external communication of the system.

[0085] The online delineation modification tool can perform online modification to the online target area and the outline of the organ at risk.

[0086] Further, an online radiotherapy planning quality control method, the method includes the following steps:

[0087] 1) The data input and output module obtains the original radiotherapy plan, original outline, and original image;

[0088] in,

[0089] The original radiotherapy plan, original delineation and original image may be the i...

Embodiment 2

[0103] On the basis of Example 1, in order to further improve the degree of automation of the online radiotherapy planning quality control system and further save doctors' labor, this example further improves the adaptability of the system, and the similarities with Example 1 will not be repeated, as follows .

[0104] An online radiotherapy plan quality control system, the system includes: plan evaluation index limit value template setting module, data input and output module, radiotherapy plan evaluation index limit value setting module, self-adaptive plan module, online outline modification tool.

[0105] The methods required by the online radiotherapy plan quality control system include: image deformation registration methods, online adjustment methods, dose calculation methods, and online evaluation methods.

[0106] in,

[0107] The plan evaluation index limit template setting module is used to set the plan evaluation index limit template, and the plan evaluation index ...

Embodiment 3

[0120] On the basis of Embodiments 1 and 2, this embodiment further defines the online plan correction method.

[0121] The online plan modification method specifically includes:

[0122] (1) Image registration is performed on the online image and the original image to generate a corresponding three-dimensional deformation vector field;

[0123] (2) According to the three-dimensional deformation vector field, the online image is generated as a fusion image with the same coverage as the original image and an online outline describing the outline of the target area and organs;

[0124] (3) Determine the two-dimensional deformation vector field of the ray intensity in each beam direction in the original radiotherapy plan according to the three-dimensional deformation vector field in the set region of interest; wherein,

[0125] The region of interest usually refers to the target region, and may also include important organs at risk. The set ROI means that the user can designate...

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Abstract

The present invention relates to an online radiotherapy plan quality control system and method. The control system comprises a data input and output module, an adaptive plan module and an online sketching modification tool, and further comprises a plan evaluation index limit template setting module, a plan evaluation index reference value template setting module, a radiotherapy plan evaluation index limit setting module, and a radiotherapy plan evaluation index reference value setting module. The control system can automatically calculate results of various online adjustment methods at the same time, evaluates the structure of each adjustment method, recommends the online adjustment methods according to the evaluation results, basically realizes automation in the whole process, only needsdoctors to conduct confirmation and modification of sketching, reduces workload of the doctors, thus reduces time and improves efficiency.

Description

technical field [0001] The invention belongs to the field of medical radiotherapy quality control, in particular to an online radiotherapy plan quality control system and a control method thereof. Background technique [0002] Radiotherapy is an important technical means to treat tumors. Usually a course of radiotherapy lasts for several weeks, during which the tumor often shifts and deforms, which affects the quality of radiotherapy. In order to control the influence of tumor displacement and deformation, tumor displacement and deformation information is obtained clinically by online acquisition of images, and then corresponding online adjustment methods are adopted. [0003] At present, the ways to obtain images online during radiotherapy mainly include cone-beam CT images (integrating cone-beam CT and radiotherapy accelerators), fan-beam CT images (integrating fan-beam CT machines and radiotherapy accelerators), and magnetic resonance images (integrating magnetic Resona...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N5/10
CPCA61N5/1031A61N5/1049A61N5/1064A61N5/1071
Inventor 李宝生马长升陈进琥朱健刘晓萌梁月强
Owner ZHANGJIAGANG MEDICAL INSTR CO LTD
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