Dosage optimization method and system

An optimization method and dose technology, applied in radiation therapy, treatment, etc., can solve the problems of poor precision and poor versatility of optimization results, and achieve the effect of accelerating the convergence speed

Active Publication Date: 2015-11-11
SHANGHAI UNITED IMAGING HEALTHCARE
View PDF5 Cites 31 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to solve the defects in the prior art that the ideal dose-volume histogram cannot be directly executed by radiotherapy equipment, the precision of the optimization result is poor, and the versatility between various treatment modes is poor, the present invention provides a dose optimization method and system

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
  • Dosage optimization method and system
  • Dosage optimization method and system
  • Dosage optimization method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] The detailed features and advantages of the present invention are described in detail below in the specific embodiments, the content of which is sufficient to enable any person skilled in the art to understand the technical content of the present invention and implement it accordingly, and according to the specification, claims and drawings disclosed in this specification , those skilled in the art can easily understand the related objects and advantages of the present invention.

[0044] The invention proposes a dose optimization method and system. Dose volume histogram (DVH) is used to quantitatively express the three-dimensional distribution information of absorbed dose in a defined volume. Such as figure 1 As shown, the horizontal axis of the histogram is absorbed dose, which can be percentage dose or absolute dose; the vertical axis is volume, which can be percentage volume or absolute volume. An important function of DVH is to help analyze whether a treatment pl...

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 provides a dosage optimization method and a system. The method comprises the following steps of acquiring a first dosage volume histogram, wherein a first dosage volume histogram is a result of fluxgraph optimization; providing a second optimization model, and taking the first dosage volume histogram as an optimization target so as to optimize a parameter of a second optimization model and acquiring a second dosage volume histogram, wherein if a comparison result of the second dosage volume histogram and the first dosage volume histogram is less than a threshold, optimization is finished; otherwise, the optimization is continued.

Description

technical field [0001] The present invention relates to the optimization of radiotherapy equipment, in particular to the optimization based on the ideal dose volume histogram. Background technique [0002] As a local treatment of tumors, radiotherapy has been constantly seeking to solve a basic problem: how to better deal with the dose relationship between tumor tissue and surrounding normal tissues, so that the tumor can be controlled locally while the surrounding normal tissues and surrounding normal tissues Radiation damage to organs is minimal. Clinical experience has proved that the local control of tumors has a certain relationship with the radiation damage of normal tissues. In most cases, the tumor control rate is directly proportional to normal tissue damage, that is, increasing the local tumor control rate will inevitably cause more damage to normal tissue. Clinical experience has also proved that by improving the irradiation technique and choosing a reasonable 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): A61N5/00
Inventor 李贵周婧劼
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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