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Mold body and application of mold body in CT detection system

A detection system and phantom technology, applied in the field of medical imaging

Pending Publication Date: 2020-01-24
NANJING ANKE MEDICAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are some subjective factors in this process, and it cannot be measured by the indicators in the product technical requirements.

Method used

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  • Mold body and application of mold body in CT detection system
  • Mold body and application of mold body in CT detection system
  • Mold body and application of mold body in CT detection system

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Experimental program
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Embodiment Construction

[0046] The present invention will be further described below in conjunction with the accompanying drawings.

[0047] Such as figure 1 and figure 2 As shown, the present invention provides a phantom with a long axis of 35 cm, a short axis of 25 cm, a length of 20 cm in the z direction, that is, a depth direction of the phantom, and a material of plexiglass PMMA. The center of this phantom is a 20cm hollow cylinder, which is convenient for placing the manufacturer's own quality control QA phantom or Catphan phantom for image quality index measurement. At both ends of the long axis, a round hole with a diameter of 2cm is opened, which can be used to place round rods made of various custom materials, such as aluminum rods, stainless steel rods, Teflon rods, etc. Test tubes with various solutions.

[0048] The phantoms of the present invention can be used in CT inspection systems for evaluating the performance and image quality of advanced scanning modalities.

[0049] 1. Auto...

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Abstract

The invention discloses a mold body and application of the mold in a CT detection system. The mold body is made of organic glass. The mold body is provided with a cylindrical center through hole; an image quality test mold body is arranged in the center through hole; a front end surface and a back end surface of the mold body are both elliptical surfaces; the front end surface of the mold body isprovided with deep holes with round cross sections; detection round rods or test tubes are arranged in the deep holes; the test tubes are filled a test solution; the image quality test mold body can use a water mold or a Catphan mold body and the like; and the mold body is used in the CT detection system, and is used for evaluating the performance and the image quality of a high-grade CT scanningmode. The mold body can be used as the supplementation of an existing CT system image quality test mold body, so that the performance and the image quality of a CT system in AEC, low-dosage and dual-energy scanning can be conveniently studied; correcting effects of osteosclerosis artifact and metal hardening artifact are analyzed quantitatively; and through one mold body, a plurality of high-gradescanning functions can be tested, so that the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of medical imaging, in particular to a phantom capable of verifying the accuracy and image quality of advanced scanning methods in a CT system and its application in a CT detection system. Background technique [0002] A CT scanning system has many indicators of image quality, such as the accuracy and uniformity of CT values, MTF, slice thickness, low contrast resolution, etc. These image quality indicators are usually measured using the industry-recognized Catphan phantom during product registration, product delivery, and acceptance. A modern CT scanner has several advanced scanning and reconstruction technologies, such as automatic exposure control (AEC), bone sclerosis artifact removal (BBH), metal artifact reduction (MAR), dual-energy scanning, and low-dose scanning, etc. For these advanced scanning and reconstruction techniques, Catphan cannot meet the test requirements of image quality because of its ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/03A61B6/00
CPCA61B6/032A61B6/583A61B6/542A61B6/505
Inventor 徐丹蔡彪
Owner NANJING ANKE MEDICAL TECH CO LTD
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