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Effective atomic number calculation method and apparatus and storage medium

A technology of atomic number and calculation method, which is applied in the medical field, can solve problems such as error, low accuracy, and inconvenient parameter adjustment, and achieve the effects of improving accuracy, accurately identifying substances, and convenient calculation process

Active Publication Date: 2019-03-12
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing curve fitting method to calculate the effective atomic number is obtained by fitting the theoretical values ​​of the elements. However, the actual calculation is also affected by factors such as different X-ray scanning equipment and the diversity of material components. There are large errors in the results, resulting in low accuracy. Low, and the method parameter adjustment is inconvenient

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  • Effective atomic number calculation method and apparatus and storage medium
  • Effective atomic number calculation method and apparatus and storage medium
  • Effective atomic number calculation method and apparatus and storage medium

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0024] figure 1 It is a flow chart of an effective atomic number calculation method provided by Embodiment 1 of the present invention. This embodiment is applicable to the calculation of the effective atomic number corresponding to a substance, especially for the calculation of the corresponding substance corresponding to the calculus component analysis system. The scene of the effective atomic number can also be used in the application scene of calculating the effective atomic number corresponding to the corresponding substance in the true and false gout identification system. The method can be executed by an effective atomic number calculation device, which can be realized by software and / or hardware, and integrated in the device for identifying substances. The method specifically includes the following steps:

[0025] S110. Based on the target X-ray scanning device, determine a first target attenuation value corresponding to the first ray energy and a second target attenua...

Embodiment 2

[0042] figure 2 It is a flow chart of an effective atomic number calculation method provided by Embodiment 2 of the present invention. On the basis of the above embodiments, this embodiment "calibrates the calculation parameters according to the sample data corresponding to the target X-ray scanning equipment to determine the target parameter value" to optimize. The explanations of terms that are the same as or corresponding to the above-mentioned embodiments will not be repeated here.

[0043] see figure 2 , the effective atomic number calculation method provided in this embodiment specifically includes the following steps:

[0044] S210. Based on the target X-ray scanning device, determine a first sample attenuation value of a plurality of sample materials under the first ray energy and a second sample attenuation value under the second ray energy.

[0045] Wherein, the sample substance may refer to a substance with known standard electron density and standard effective...

Embodiment 3

[0062] image 3 A schematic diagram of the structure of an effective atomic number calculation device provided by Embodiment 3 of the present invention. This embodiment is applicable to the calculation of the effective atomic number corresponding to a substance. The device specifically includes: a target attenuation value acquisition module 310 and an effective atomic number Determine module 320 .

[0063] Wherein, the target attenuation value acquisition module 310 is configured to determine the first target attenuation value corresponding to the first ray energy and the second target attenuation value corresponding to the second ray energy of the substance to be measured based on the target X-ray scanning device, wherein the first The ray energy is lower than the second ray energy; the effective atomic number determination module 320 is configured to calculate the effective atomic number based on the preset effective atomic number calculation formula, according to the first ...

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Abstract

Embodiments of the invention disclose an effective atomic number calculation method and apparatus and a storage medium. The method comprises the following steps of: on the basis of a target X-ray scanning device, determining a first target attenuation value corresponding to a first ray energy and a second target attenuation value corresponding to a second ray energy of a to-be-detected substance,wherein the first ray energy is lower than the second ray energy; and on the basis of a preset effective atomic number calculation formula, and according to the first target attenuation value, the second target attenuation value, a target parameter value corresponding to a calculation parameter as well as an effective atomic number corresponding to pure water, determining the effective atomic number corresponding to the to-be-detected substance, wherein the target parameter value is used for calibrating and determining the calculation parameter according to sample data corresponding to the target X-ray scanning device in advance. By virtue of the technical scheme of the embodiments of the invention, the accuracy for calculating the effective atomic number can be improved.

Description

technical field [0001] The embodiments of the present invention relate to the medical field, and in particular to a method, device and storage medium for calculating an effective atomic number. Background technique [0002] The atomic number refers to the serial number in the periodic table of elements, which is used to reflect the charge number of the atomic nucleus. When X-rays interact with a compound or a mixture, it can be equivalent to an interaction between X-rays and a certain element, and the atomic number of this equivalent element is the effective atomic number of the compound or mixture. In different fields, it is often possible to identify different substances by calculating their effective atomic numbers. [0003] At present, when calculating the effective atomic number of a substance, the corresponding relationship between the ratio of the known elements (atomic number is an integer) at different energy attenuation coefficients and the effective atomic number...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/087
CPCG01N23/087
Inventor 于文义
Owner SHANGHAI UNITED IMAGING HEALTHCARE