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CR/DR (Computed Radiography/Direct Radiography) comprehensive detection die body

A technology of comprehensive detection and phantom, which is applied in medical science, radiation beam guiding devices, instruments for radiological diagnosis, etc., can solve the problems of low detection efficiency, high cost, inconvenient to carry and use, etc. Quality, easy-to-use effects

Active Publication Date: 2013-07-24
范杰
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The detection efficiency is low, and CR / DR needs to be exposed for at least 4 times to complete the detection of spatial resolution, low-density resolution, consistency between radiation field and light field, and uniformity;
[0004] 2. Spatial resolution, low-density resolution, field-to-light consistency (3 aluminum plates) and uniformity detection are respectively completed by 5 aluminum modules, which are heavy and inconvenient to carry and use;
[0005] 3. The function of a single aluminum mold body is single, the production consumes a lot of materials, and the cost is high

Method used

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  • CR/DR (Computed Radiography/Direct Radiography) comprehensive detection die body
  • CR/DR (Computed Radiography/Direct Radiography) comprehensive detection die body

Examples

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Embodiment Construction

[0020] figure 1 and figure 2 The only difference is that the number of holes on the pure aluminum plate template as a low-contrast test card is different.

[0021] see figure 1 (There are 16 holes on the pure aluminum plate) The CR / DR comprehensive detection phantom, the surface of the square pure aluminum plate 100 with a thickness of 20mm and a side length greater than 430mm is provided with horizontal measuring scales and longitudinal measuring scales along the two midline directions of the square. Ruler; three groups of image uniformity test points are set on the surface of the square pure aluminum plate 100, and each group of test points is composed of five identical frame areas, and once imaging is realized, the spatial resolution of the CR\DR system, low Contrast resolution, uniformity, field-to-light field consistency detection. The first group consists of the first frame area 301 located at the midpoint of the square and the second, third, fourth, and fifth frame ...

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Abstract

The invention discloses a CR / DR (Computed Radiography / Direct Radiography) comprehensive detection die body and belongs to a die body for the detection of a medical X-ray photography system. Transverse and longitudinal measuring rulers and three groups of image uniformity test points are arranged on the surface of a square pure-aluminum plate with the thickness of 20mm and the side length of greater than 430mm. 16 or 19 holes with the same diameter and sequentially decreasing depth are arranged on the surface of the pure-aluminum plate so as to be used as a low-contrast test card. The CR / DR detection die body disclosed by the invention is integrated with a ray field and light field consistency test card, a low-contrast test card and image uniformity test points, has high detection efficiency and is easy to operate and convenient to use.

Description

technical field [0001] The invention relates to a detection phantom of an X-ray photography system, in particular to a detection phantom of a medical X-ray photography system that integrates space resolution, low-density resolution, consistency between radiation field and light field, and uniformity detection. Background technique [0002] At present, the CR / DR phantom used in the performance testing of medical computerized radiography system (CR system) and digital radiography system (DR system) is composed of multiple sets of test cards. The performance indicators such as low-density resolution, field-to-light field consistency, and uniformity detection of the CR / DR system can only be obtained several times or even many times. The operation is cumbersome, and the materials are fragile, and it is extremely inconvenient to carry. The original CR / DR motif mainly has the following problems: [0003] 1. The detection efficiency is low, and CR / DR needs to be exposed for at leas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B6/03A61B6/08A61B6/00
Inventor 杨勇林滔李书琼
Owner 范杰