A system for automatic optimal imrt/vmat treatment plan generation

A technology of treatment planning and planning system, applied in the field of radiation therapy, which can solve the problems such as the inability to further reduce the dose, the tedious optimization, the inability to consider additional structures, etc.

Active Publication Date: 2019-05-03
KONINKLJIJKE PHILIPS NV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even though it is relatively easy to create a plan that satisfies the purpose, it is often difficult to create an optimal plan
Plans can often be further optimized, often significantly, but optimal plans are difficult to define
Therefore, it is difficult to judge the degree of optimization in the current trial
Can neither account for additional structures nor further reduce dose to existing critical structures
As a result, optimization can be cumbersome, inconsistent, suboptimal, and non-intuitive

Method used

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  • A system for automatic optimal imrt/vmat treatment plan generation
  • A system for automatic optimal imrt/vmat treatment plan generation
  • A system for automatic optimal imrt/vmat treatment plan generation

Examples

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Embodiment Construction

[0018] refer to figure 1 A treatment system 10, such as an intensity modulated radiation therapy (IMRT) system or a volume modulated radiation arc therapy (VMAT) system, includes an imaging system 12 to generate one or more planning images of a region of interest of a patient. The planning images are volumetric (ie, three-dimensional) and are typically stored in the planning image memory 14 of the treatment system 10 . A region of interest includes one or more target structures, and typically includes one or more critical structures. Each of the target structures is a lesion or other tissue region, such as a tumor, to be irradiated. Each of the critical structures is an organ or other tissue region that is at risk of being damaged by radiation from an intended target structure, such as radiation that travels to the target structure, has passed through the target structure, or has passed in close proximity to the target structure.

[0019] Imaging system 12 uses one or more i...

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PUM

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Abstract

A treatment planning system (18) and method for generating an optimal treatment plan. Multiple goals are automatically formulated (154) based on multiple clinical objectives including dose mapping and priorities. The dose distribution map and the priorities correspond to a plurality of structures including a plurality of targets and / or critical structures identified within the planning image. Additionally, a plurality of treatment plan parameters are optimized (156) based on the plurality of objectives to generate a treatment plan. The plurality of objectives are reformulated (162) and the plurality of treatment plan parameters are reoptimized (156) based on the reformulated plurality of objectives to generate a reoptimized treatment plan. The optimization is repeated (156) based on the reformulated plurality of objectives to generate a reformulated treatment plan.

Description

technical field [0001] This application relates generally to radiation therapy. It has particular application in connection with radiation therapy planning and will be described with reference thereto. However, it is to be understood that the present application also applies to other usage scenarios and is not necessarily limited to the aforementioned applications. Background technique [0002] In radiation therapy planning, creating patient-specific treatment plans can be a time-consuming and tedious task. Many of the steps are lengthy and vary little from patient to patient or from program to program. Many of these steps can be automated using macro languages ​​or scripts, but some aspects are difficult without tools for writing logical expressions, loops, and other common programming functions. [0003] One area of ​​current treatment planning that is difficult to automate is intensity-modulated radiation therapy (IMRT) or volume-modulated arc therapy (VMAT) optimizati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61N5/10G16H20/40
CPCA61N5/1031A61N5/1042G16H20/40A61N5/1038A61N5/1039A61N5/1045A61N5/1047
Inventor P·库马尔K·A·布兹杜泽克M·帕尔默M·坎特V·兰加纳坦
Owner KONINKLJIJKE PHILIPS NV
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