Method for optimizing proton radiotherapy path in active scanning manner by considering scanning speed change

A scanning speed and path optimization technology, applied in the field of medical physics, can solve problems such as engineering errors, and achieve the effect of reducing the overall scanning time and reducing the overall treatment time

Inactive Publication Date: 2016-06-08
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Applying this model to solve the problem will inevitably have a certain error with the actual engineering

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for optimizing proton radiotherapy path in active scanning manner by considering scanning speed change
  • Method for optimizing proton radiotherapy path in active scanning manner by considering scanning speed change
  • Method for optimizing proton radiotherapy path in active scanning manner by considering scanning speed change

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The technology of the present invention overcomes the deficiencies of existing models, and proposes a traveling salesman problem model for solving the scanning path problem with the shortest scanning time under the condition of variable active scanning speed, and uses a global optimization method genetic algorithm to solve the scanning path with the shortest scanning time. Using this model method is as close as possible to the actual engineering application and reduces the scanning movement time, which has a certain contribution to reducing the treatment time, especially to the scanning method with many scannable points.

[0031] Such as figure 1 As shown, the present invention includes a model building module, an optimization module, an output module, etc., and provides the function and role of each module and the mutual connection relationship.

[0032] (1) Model building module: build a traveling salesman problem model with variable scanning speed, set parameters to ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for optimizing a proton radiotherapy path in an active scanning manner by considering a scanning speed change. The method comprises the steps of according to different scanning speeds of a scanning point in different positions, establishing a traveling salesman problem model with variable scanning speed; and solving a scanning path with the shortest scanning time by using a global optimization algorithm and a genetic algorithm. According to the method, a scanning speed concept is introduced, so that a real scene can be accurately simulated, the requirement of practical engineering application is basically met, and the solved scanning path is the scanning path with the shortest scanning time under the condition that the scanning speeds are different.

Description

technical field [0001] The invention relates to a problem model for solving the shortest scanning path of the scanning time with a variable scanning speed in proton radiotherapy in active scanning mode, which belongs to the field of medical physics, and will be used in the traveling salesman model to calculate the scanning path from the shortest The simple equidistant equivalence model is transformed into a model in which absolute position determines the cost of travel time. Background technique [0002] With the development of science and technology and the progress of society, proton radiation therapy has been widely used and developed, and the active scanning method has been greatly developed and applied. The active scanning method mainly uses an accelerator to generate a high-energy proton beam, which is controlled by deflection magnets and other devices to form continuous or discontinuous scanning beams of different energies, which cause energy deposition on the tumor t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06N3/12
CPCG06Q10/047G06N3/12
Inventor 汪冬吴宜灿胡丽琴裴曦王文曹瑞芬
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap