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An interactive radiotherapy planning system optimization system

A technology for radiation therapy and system optimization, applied in radiation therapy, treatment, etc., can solve the problem of optimization time-consuming, from ten minutes to several hours, and achieve high utilization rate, simplify the production process, and improve the effect of treatment efficiency

Active Publication Date: 2018-01-26
SHANGHAI DATU MEDICAL SCI & TECH
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  • Abstract
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Problems solved by technology

Optimizing such a large-scale pathological objective function is very time-consuming. The time for current TPS to perform an optimization varies from ten minutes to several hours depending on the complexity of the radiotherapy plan.

Method used

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  • An interactive radiotherapy planning system optimization system
  • An interactive radiotherapy planning system optimization system
  • An interactive radiotherapy planning system optimization system

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Embodiment Construction

[0024] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0025] The first embodiment of the present invention relates to an interactive radiotherapy planning system optimization method, such as image 3 As shown, it includes the following steps: After the target area / organ is delineated and the irradiation field is arranged, the optimized objective function is used to optimize the radiation treatment plan to generate an isodose line distribution map. When the optimized dose distribut...

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Abstract

The invention relates to an interactive radiotherapy plan system optimization method and a system thereof. The interactive radiotherapy planning system optimization method comprises the following steps: performing target / organ drawing and radiation field arrangement; performing radiotherapy plan optimization by means of an optimization target function and generating an equal-dosage line distribution map; when an optimized dosage distribution does not reach a standard, moving the equal-dosage line which does not reach the standard to a target position; and performing optimization again by means of the optimization target function until the dosage distribution reaches the standard. The system of the invention comprises a determining module, an optimizing module, an equal-dosage line generating module and a moving module. The interactive radiotherapy planning system optimization method and the method thereof can simplify a process for generating the radiotherapy plan.

Description

technical field [0001] The invention relates to the technical field of radiotherapy plan formulation, in particular to an optimization method and system for an interactive radiotherapy plan system. Background technique [0002] The formulation of tumor radiation therapy plan is a complex iterative process, the steps of which are as follows: figure 1 So style. [0003] The current planning system (TPS, treatment planning system) is based on stand-alone operation. Physicists and doctors first import the patient’s CT data into TPS, and then outline the target area and organs on the CT; based on the information of the target area and organs, the physicist arranges the geometric position of the irradiation field under the reference of the CT image, and inputs the information prescribed by the doctor. Prescription dose and dose limit. [0004] Next, the physicist starts the optimization algorithm, which aims at the prescription dose and dose limit, and tries to achieve a unifor...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61N5/00
Inventor 石峰李晓亮
Owner SHANGHAI DATU MEDICAL SCI & TECH
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