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Dual-energy filter, dual-energy module and dual-energy computer X-ray tomography device

A technology of tomography and filter, which is applied in the field of dual-energy modules, dual-energy computerized X-ray tomography devices, and dual-energy filters, can solve the problems of sacrificing image quality, high cost, and unsatisfactory results.

Inactive Publication Date: 2019-01-11
SHANDONG DACHENG MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method requires the addition of expensive detectors, and the spectral separation method will be inferior to other dual-energy CT implementations due to probability attenuation.
[0007] The above implementation methods either require expensive costs or sacrifice image quality in practical applications, and the results are not satisfactory.

Method used

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  • Dual-energy filter, dual-energy module and dual-energy computer X-ray tomography device
  • Dual-energy filter, dual-energy module and dual-energy computer X-ray tomography device
  • Dual-energy filter, dual-energy module and dual-energy computer X-ray tomography device

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Experimental program
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Effect test

Embodiment 1

[0070] The dual-energy filter, including the butterfly filter body, is made of aluminum 1100, and the first absorption area and the second absorption area are arranged side by side at the bottom. The material of the first absorption area is gold, and the material of the second absorption area is tin. Under the configuration of VarexGS-5071 bulb and Spellman X5427 high voltage generator (HVG), the thickness of gold is set to 0.1mm, and the thickness of tin is set to 0.5mm.

Embodiment 2

[0072]The dual-energy filter, including the butterfly filter body, is made of aluminum 1100, and the first absorption area and the second absorption area are arranged side by side at the bottom. The material of the first absorption area at the bottom is gold, and the material of the second absorption area is tin. Under the configuration of Varex GS-5071 bulb and Spellman X5427 high voltage generator (HVG), the thickness of gold is set to 0.3mm, and the thickness of tin is set to 0.8mm.

Embodiment 3

[0074] The dual-energy filter, including the butterfly filter body, is made of aluminum 1100, and the first absorption area and the second absorption area are arranged side by side at the bottom. The material of the first absorption area at the bottom is gold, and the material of the second absorption area is tin. Under the configuration of Varex GS-5071 bulb and Spellman X5427 high voltage generator (HVG), the thickness of gold is set to 0.2mm, and the thickness of tin is set to 0.6mm.

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Abstract

The invention relates to a dual-energy filter, a dual-energy module and a dual-energy computer X-ray tomography device. The dual-energy filter is arranged between a radiation source and a detector, and comprises a first absorption zone consisting of a high k-edge material and a second absorption zone consisting of a low k-edge material, arranged side-by-side, wherein the high k-edge value of the high k-edge material is above 60 keV, and the low k-edge value of the low k-edge material below 40kev. The dual-energy filter can realize dual-energy scanning at low cost and ensure picture quality.

Description

technical field [0001] The invention relates to the technical field of medical imaging, in particular to a dual-energy computerized X-ray tomography technology, in particular to a dual-energy filter, a dual-energy module and a dual-energy computerized X-ray tomography device. Background technique [0002] In the prior art, there are multiple implementations of dual-energy computed tomography (DECT): [0003] The first way, which is also the simplest way to implement, is to use the existing scanning equipment to make the tube perform two series of scans under two different voltages, so as to obtain two sets of completely different energy spectra. This method will not increase the equipment cost of the scanning equipment, but because two sets of scans are required, the delay in time will reduce the speed of scanning the patient; Physical movement can also cause image quality problems. [0004] The second way is to add a group of tubes and detectors on the frame, so that the ...

Claims

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Application Information

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IPC IPC(8): A61B6/03A61B6/00
CPCA61B6/032A61B6/4035A61B6/482
Inventor 陈牧福瑞斯特·麦克道戈尔兰道夫·麦金利苏士刚
Owner SHANDONG DACHENG MEDICAL TECH CO LTD
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