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Human body phantom for radiation dose measurement and preparation method and application thereof

A technology of radiation dose and phantom, which is applied in the field of human body phantom for radiation dose measurement and its preparation, achieving the effects of high tissue equivalence, simple molding process, and low environmental pollution

Pending Publication Date: 2021-09-03
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a human body phantom for radiation dose measurement, so as to solve various defects existing in the existing human body phantom

Method used

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  • Human body phantom for radiation dose measurement and preparation method and application thereof
  • Human body phantom for radiation dose measurement and preparation method and application thereof
  • Human body phantom for radiation dose measurement and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] This embodiment provides a Chinese human body phantom, and its preparation method includes the following steps:

[0039] 1. Use the CT scan of the corpse specimen to obtain the helical tomographic image, reconstruct it with Minics software, and generate a 3D printable stl file. Use the software to extract the phantom outline, bone tissue and main organ information in the stl file, and optimize the image design of the generated model, specifically: remove the arms and legs from the phantom outline, and divide it into head, chest and Three parts of the abdomen, each sectioned into front and rear halves; major organs and bone tissue are smoothed and separated from surrounding tissues; set on major organs, bone tissue, and phantom body for insertion Socket for the radiation detector.

[0040] 2. Select ABS as the 3D printing material, adopt the fused lamination molding (FDM) printing technology, the filling degree of the material is 100%, set the temperature of the printer...

Embodiment 2

[0043] This embodiment provides a Chinese human body phantom, and its preparation method includes the following steps:

[0044] 1. Use the CT scan of the corpse specimen to obtain the helical tomographic image, reconstruct it with Minics software, and generate a 3D printable stl file. Use the software to extract the phantom outline, bone tissue and main organ information in the stl file, and optimize the image design of the generated model, specifically: remove the arms and legs from the phantom outline, and divide it into head, chest and Three parts of the abdomen, each sectioned into front and rear halves; major organs and bone tissue are smoothed and separated from surrounding tissues; set on major organs, bone tissue, and phantom body for insertion Socket for the radiation detector.

[0045] 2. Choose ABS as the 3D printing material, use FDM printing technology, the filling degree of the material is 100%, set the temperature of the printer bottom plate to 60°C, and the pr...

Embodiment 3

[0048] This embodiment provides a Chinese human body phantom, and its preparation method includes the following steps:

[0049] 1. Use the CT scan of the corpse specimen to obtain the helical tomographic image, reconstruct it with Minics software, and generate a 3D printable stl file. Use the software to extract the phantom outline, bone tissue and main organ information in the stl file, and optimize the image design of the generated model, specifically: remove the arms and legs from the phantom outline, and divide it into head, chest and Three parts of the abdomen, each sectioned into front and rear halves; major organs and bone tissue are smoothed and separated from surrounding tissues; set on major organs, bone tissue, and phantom body for insertion Socket for the radiation detector.

[0050] 2. Choose ABS as the 3D printing material, use FDM printing technology, the filling degree of the material is 100%, set the temperature of the printer bottom plate to 60°C, and the pr...

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Abstract

The invention discloses a preparation method of a human body phantom for radiation dose measurement. The preparation method comprises the steps that (1) a whole body CT image of a human body is obtained through scanning, and a file for 3D printing is generated; (2) software is utilized to extract information of phantom outer contours, bone tissues and main organs recorded in the file, optimization design is performed, and an optimized 3D printing file is obtained; (3) according to the optimized 3D printing file, a 3D printing process is adopted to perform printing to obtain a phantom main body and the main organs, and then the printed organs are assembled to the corresponding positions of the organs in the phantom main body respectively; and (4) bone equivalent colloid is prepared and poured into a cavity, corresponding to the bone tissues, in the phantom main body, and the human body phantom is obtained after curing. The human body phantom covers eight different organs, the organs can be detached, the density deviation of the radiation sensitive organs is not greater than 3%, and a platform is provided for radiation risk assessment of astronauts in the future.

Description

technical field [0001] The invention relates to the technical field of radiation dose measurement, in particular to a human body phantom for radiation dose measurement and a preparation method and application thereof. Background technique [0002] In the space station, the astronauts must be exposed to the space radiation environment in the cabin. Space ionizing radiation is one of the important factors affecting the safety and health of astronauts in manned spaceflight, so space radiation dose measurement has always been a matter of great concern to scientists. The lack of space radiation monitoring and evaluation technology will seriously affect the radiation safety of astronauts who land on the moon, stay on the moon and fly in deep space in the future. It is urgent to develop a test platform at this stage to study the dose distribution of radiation-sensitive organs. Due to the different radiation sensitivities of different tissues and organs in the human body, obtaining...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/00G01T1/161G01T1/163G06F30/10
CPCA61B6/583G01T1/161G01T1/163G06F30/10G06F2113/10
Inventor 胡亮樊文慧屈卫卫涂文勇周光明
Owner SUZHOU UNIV
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