Method, apparatus and radiotherapy equipment for verifying radiation therapy dose

A radiation therapy and dose technology, applied in radiation therapy, therapy, X-ray/γ-ray/particle irradiation therapy, etc., can solve the problem of consuming time and energy of hospital physicists and technicians, avoid particle transport simulation, improve Calculation speed, efficient verification effect

Active Publication Date: 2021-01-01
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Traditionally, tools such as film and dose distribution map detector are used to perform dose verification (QA) work before treatment, but this kind of work consumes time and energy of hospital physicists and technicians

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  • Method, apparatus and radiotherapy equipment for verifying radiation therapy dose
  • Method, apparatus and radiotherapy equipment for verifying radiation therapy dose
  • Method, apparatus and radiotherapy equipment for verifying radiation therapy dose

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Embodiment Construction

[0042] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some examples or embodiments of the present application, and those skilled in the art can also apply the present application to other similar scenarios. Unless otherwise apparent from context or otherwise indicated, like reference numerals in the figures represent like structures or operations.

[0043] As indicated in this application and claims, the terms "a", "an", "an" and / or "the" do not refer to the singular and may include the plural unless the context clearly indicates an exception. Generally speaking, the terms "comprising" and "comprising" only suggest the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list, and ...

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Abstract

The present invention provides a device for verifying radiotherapy dose, comprising: a memory for storing instructions executable by a processor; a processor for executing the instructions to implement the following method: acquiring the measurement detected by the electronic portal imaging device An image, the measurement image characterizes the dose distribution of the radiotherapy beam on the electronic portal imaging device; uses a dose algorithm to calculate the energy fluence distribution map of the beam on the electronic portal imaging device; according to the energy fluence distribution map and The energy response curve of the electronic portal imaging device calculates a predicted image, the predicted image characterizes the dose distribution of the virtual beam on the electronic portal imaging device; and compares the predicted image with the measurement image. The invention can quickly and accurately predict the dose distribution generated by the radiotherapy plan, thereby efficiently verifying the rationality of the radiotherapy plan.

Description

technical field [0001] The invention mainly relates to radiotherapy equipment, in particular to a method and device for verifying radiotherapy dose in the radiotherapy equipment. Background technique [0002] In order to achieve precise radiation therapy and improve the efficiency of tumor treatment, image-guided radiation therapy (IGRT) is widely used in clinical practice, among which Electronic Portal Imaging Device (EPID) is the most advanced technology for IGRT. Commonly used image-guided equipment can precisely locate the tumor location before or during treatment, help doctors judge whether the patient is positioned correctly, and judge whether the location or shape of the tumor has changed, etc., so as to reduce the possibility of normal tissues being irradiated and reduce the Side effects, improve treatment efficiency. [0003] In radiotherapy (hereinafter referred to as radiotherapy), in order to ensure that a radiotherapy plan is accurately irradiated to the patien...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61N5/10
CPCA61N5/1071A61N5/1031A61N5/1075A61N5/1081A61N2005/1034A61N2005/1054
Inventor 韩卫金朝刘艳芳章卫
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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