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Three-dimensional dose calculation method, computer equipment and readable medium

A calculation method, three-dimensional dose technology, applied in the field of computer equipment and readable media, three-dimensional dose calculation method, can solve the problems of low accuracy, slow calculation speed, increased training difficulty, etc., to achieve improved calculation efficiency, high versatility, Effect of sample size and cost reduction

Pending Publication Date: 2020-12-15
GUANGZHOU RAYDOSE MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above training models are all related to the energy and model corresponding to the medical linear accelerator, which lacks versatility
In addition, due to the irregular shape of the shot field, a large amount of data containing various field conditions is required, which increases the difficulty of training
Therefore, the dosage algorithm of the prior art also has the disadvantages of slow calculation speed and low precision.

Method used

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  • Three-dimensional dose calculation method, computer equipment and readable medium
  • Three-dimensional dose calculation method, computer equipment and readable medium

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Experimental program
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Embodiment 1

[0039] This embodiment provides a three-dimensional dose calculation method, such as figure 1 shown, including steps:

[0040] S1. Obtaining an image of the patient;

[0041] S2. Process the image to obtain a dielectric material distribution map, an electron density distribution map, and several TERMA distribution maps corresponding to several individual beam units; wherein, several beam units are gridded by radiation fields obtained by splitting.

[0042] Specifically, in this implementation, the size of the beam unit is set to 0.5cm×0.5cm, the number of each beam unit is i, the i-th beam unit is denoted as Bi, and the total grid number is N.

[0043] S3. Fusion the dielectric material distribution map, the electron density distribution map, and the single TERMA distribution map as one channel, and input them into the trained neural network model to obtain a single three-dimensional dose distribution, wherein the neural network model is Through the existing dose algorithm,...

Embodiment 2

[0068] A computer device provided by an embodiment of the present invention includes a processor and a memory, the memory is used to store a computer program; the processor is used to execute the computer program and realize the implementation of the present invention when executing the computer program The three-dimensional dose calculation method provided by the example.

[0069] It should be understood that the processor may be a central processing unit (Central Processing Unit, CPU), and the processor may also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. Wherein, the general-purpose processor may be a microprocessor or the processor may be any conventiona...

Embodiment 3

[0071] This embodiment provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the processor can realize the three-dimensional dose calculation provided by the embodiment of the present invention method.

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Abstract

The invention discloses a three-dimensional dose calculation method, computer equipment and a readable medium. The three-dimensional dose calculation method comprises the steps of acquiring an image of a patient; processing the image to obtain a dielectric material distribution diagram, an electron density distribution diagram and a plurality of TERMA distribution diagrams corresponding to a plurality of single beam units respectively, wherein the plurality of beam units are obtained by performing gridding splitting on a radiation field; fusing the dielectric material distribution diagram, theelectron density distribution diagram and the single TERMA distribution diagram as a channel respectively, inputting into a trained neural network model to obtain single three-dimensional dose distribution, and calculating three-dimensional measurement distribution of the radiation field by superposing a plurality of single three-dimensional dose distribution. According to the method, the calculation efficiency is improved while the calculation accuracy is not reduced.

Description

technical field [0001] The invention belongs to the technical field of radiotherapy dose calculation, and in particular relates to a three-dimensional dose calculation method, computer equipment and a readable medium. Background technique [0002] The implementation of modern radiotherapy technology is inseparable from radiotherapy dose calculation. Dose calculation covers all aspects of radiotherapy, including dose optimization for planning, calculation of dose distribution, and even independent checking of plans and three-dimensional dose verification. Different algorithms have the problem of considering the calculation efficiency and the balance between calculation and accuracy. For example, the pencil beam algorithm is faster but less accurate, and the Monte Carlo dose algorithm is the most accurate but slower. The computational accuracy and speed of the barrel-string convolution algorithm lie in between. Therefore, it has always been the goal of the dose algorithm res...

Claims

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Application Information

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IPC IPC(8): G16H30/20G16H20/40G06T5/50G06T3/40G06N3/08G06K9/62
CPCG16H30/20G16H20/40G06T5/50G06N3/08G06T3/4007G06T2207/20221G06T2207/10081G06F18/214
Inventor 陈立新朱金汉
Owner GUANGZHOU RAYDOSE MEDICAL TECH CO LTD
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