Calculation equipment, device and storage medium for radiation dose

A radiation dose and calculation equipment technology, applied in the field of radiology, can solve problems such as reduced calculation accuracy, large statistical errors, and wrong dose distribution, and achieve high calculation accuracy, increase calculation speed, and improve accuracy.

Active Publication Date: 2022-06-28
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for non-uniform motifs (with relatively fragmented sub-field openings), the 3D smoothing noise reduction method cannot effectively identify whether the burrs are caused by large statistical errors or the actual dose gradient, so the smoothing process will Leads to erroneous dose distribution, reducing calculation accuracy
Since the patient itself is an inhomogeneous phantom in the clinical process, and the requirements for dose gradient changes are becoming more and more refined, the calculation method combining the Monte Carlo algorithm and the smoothing algorithm cannot meet the actual clinical needs.

Method used

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  • Calculation equipment, device and storage medium for radiation dose
  • Calculation equipment, device and storage medium for radiation dose
  • Calculation equipment, device and storage medium for radiation dose

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0031] figure 1 A schematic structural diagram of a radiation dose calculation device provided in Embodiment 1 of the present invention; figure 2 Yes figure 1 A flow chart of the radiation dose calculation process performed by the CPU. like figure 1 and figure 2 As shown, the radiation dose calculation device in this embodiment includes:

[0032] one or more processors 110;

[0033] memory 120 for storing one or more programs;

[0034] When the one or more programs are executed by the one or more processors 110, the one or more processors 110 can implement the following operations S210-S230 to calculate the radiation dose distribution.

[0035] figure 1 Take a processor 110 as an example in the above; the processor 110 and the memory 120 in the device can be connected through a bus or other means, figure 1 Take the connection through the bus as an example. As a computer-readable storage medium, the memory 120 may be used to store software programs, computer-executab...

Embodiment 2

[0056] image 3 This is a flowchart of a radiation dose calculation process performed by a processor in a radiation dose calculation device provided in Embodiment 2 of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiment: "When using a preset neural network model Previously, it also included the training process of a preset neural network model." The explanations of the terms that are the same as or corresponding to the above-mentioned embodiments are not repeated here.

[0057] see image 3 , the radiation dose calculation process performed by the processor in the radiation dose calculation device provided by this embodiment specifically includes the following steps:

[0058] S310. Acquire multiple training samples.

[0059] The training samples may refer to data for training a preset neural network model. The training samples may be the first sample dose distribution with low precision, the second sample dose distribution wit...

Embodiment 3

[0083] Figure 4 This is a schematic structural diagram of a radiation dose calculation device provided in Embodiment 3 of the present invention. This embodiment is applicable to the situation of calculating the radiation dose distribution of a patient. The device specifically includes: an information acquisition module 410, a first dose distribution determination module 420 and a second dose profile determination module 430.

[0084] Wherein, the information acquisition module 410 is used to acquire information corresponding to the target object, where the information refers to the information used to calculate the dose distribution; the first dose distribution determination module 420 is used to obtain information corresponding to the target object according to the Monte Carlo algorithm, Determine the first dose distribution corresponding to the target object; the second dose distribution determination module 430 is configured to use the information corresponding to the firs...

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Abstract

The embodiment of the invention discloses a radiation dose calculation device, device and storage medium. The device includes: one or more processors; a memory for storing one or more programs; when the one or more programs are executed by the one or more processors, the one or more processors perform the following operations: obtain the target The information corresponding to the object; according to the Monte Carlo algorithm and the information corresponding to the target object, determine the first dose distribution corresponding to the target object; use the first dose distribution and the information corresponding to the target object as the input of the preset neural network model, according to the preset The output result of the neural network model determines the second dose distribution corresponding to the target object; wherein, the accuracy of the second dose distribution is higher than the accuracy of the first dose distribution. Through the technical solutions of the embodiments of the present invention, faster calculation speed and higher calculation accuracy can be ensured to meet clinical needs.

Description

technical field [0001] Embodiments of the present invention relate to the field of radiation medicine, and in particular, to a radiation dose calculation device, device, and storage medium. Background technique [0002] Radiation therapy is a common tumor treatment. Before performing radiotherapy, it is often necessary to calculate the radiation dose distribution in the human body to ensure that the radiation dose to the tumor area reaches the therapeutic dose and that the radiation dose to normal tissues is within a safe range. [0003] In the prior art, the calculation methods of radiation dose include pencil beam (Pencil Beam) algorithm, convolution (ConeConverlution) algorithm and Monte Carlo (Monte Carlo) algorithm. Among them, the pencil beam algorithm and the convolution algorithm are based on analytical or empirical methods to calculate the dose distribution, and the calculation speed is relatively fast. Due to the influence of the process, the accuracy of radiatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61N5/10
CPCA61N5/103A61N2005/1034G06N20/00A61N5/1031A61N2005/0627
Inventor 刘艳芳
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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