Method, apparatus and computer system for determining beamlet intensity in a radiotherapy system

A sub-beam and intensity technology, applied in the direction of mechanical/radiation/invasive treatment, etc., can solve the problem of not being able to optimize the sub-beam intensity

Active Publication Date: 2021-08-06
YOFO MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the position and number of fields are judged by the user based on experience, it is impossible to optimize the intensity of the sub-beams in each field

Method used

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  • Method, apparatus and computer system for determining beamlet intensity in a radiotherapy system
  • Method, apparatus and computer system for determining beamlet intensity in a radiotherapy system
  • Method, apparatus and computer system for determining beamlet intensity in a radiotherapy system

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Embodiment Construction

[0030] Since the present disclosure allows for various changes and many embodiments, the embodiments will be illustrated in the drawings and described in detail in the written description. The aspects and features of the present disclosure, and the method or methods for achieving them will be apparent when referring to the embodiments described with reference to the accompanying drawings. Such disclosure may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

[0031]As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. Furthermore, the use of "may" when describing embodiments of the invention refers to "one or more embodiments of the invention". Expressions such as "at least one of," when preceding a list of elements, modify the entire list of elements and do not modify the individual elements of the list. Additionally, the term "exemplary" is i...

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Abstract

The present application provides a method, device and computer system for determining beamlet intensity in a radiotherapy system. The method according to the present application is based on the compressive sensing theory by introducing the position of the radiation field and the sub-beam into the traditional objective function to obtain the objective function. Then the objective function is optimized to select a backup field from multiple fields. Based on the spare fields, the sub-beam intensity is obtained by optimizing the traditional intensity-modulated radiotherapy plan.

Description

technical field [0001] The present application generally relates to methods and apparatus and computer systems for determining beamlet intensities in radiotherapy systems. Background technique [0002] Radiation therapy is one of the main techniques for treating malignant tumors. Its purpose is to irradiate the tumor (tissue or target area to be irradiated) as much as possible, and to minimize the dose to the surrounding normal tissues. IMRT (intensity modulated radiation therapy, intensity-modulated radiation therapy) developed from three-dimensional conformal radiation therapy is a kind of radiation therapy. IMRT requires that the intensity of sub-beams (also called beamlets) in the radiation field be adjusted according to certain requirements. It adjusts the sub-beam intensity according to the three-dimensional shape of the target area and the specific anatomical relationship between the vital organs and the target area under the condition that the shape of each radiatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G16H20/40
CPCG16H20/40
Inventor 朱磊
Owner YOFO MEDICAL TECH CO LTD
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