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Medical CT three-dimensional space resolution detection die body and preparation method thereof

A three-dimensional space and resolution technology, applied in the field of medical testing, can solve the problems of detection phantom and technical lag, unable to measure spatial resolution, etc., and achieve the effect of simple and stable structure and reasonable function design.

Pending Publication Date: 2019-09-17
BEIJING TONGREN HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The resolution design range of the test card is suitable for the 100 nanometers to 10 microns of the microdensitometer. In addition, this invention cannot measure the spatial resolution in the horizontal plane
[0006] Therefore, the existing detection phantoms and technologies have seriously lagged behind the development of CT technology and the needs of clinical image quality evaluation, and there is an urgent need for phantoms suitable for 3D high-contrast resolution detection

Method used

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  • Medical CT three-dimensional space resolution detection die body and preparation method thereof
  • Medical CT three-dimensional space resolution detection die body and preparation method thereof

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. Additionally, the protection scope of the present invention should not be limited only to the following specific structures or components or specific parameters.

[0025] A medical CT three-dimensional spatial resolution detection phantom of the present invention is a phantom for detecting high-contrast resolution imaging performance of CT. It is a detection phantom designed for the test and evaluation requirements of the spatial resolution of any ...

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Abstract

The invention provides a medical CT three-dimensional space resolution detection die body and a preparation method thereof. The detection die body is used for detecting imaging performance of CT spatial resolution, namely high contrast resolution, and is designed according to test and evaluation requirements of space resolution in X, Y and Z axis directions and any cross section direction in modern multi-slice spiral CT volume data acquisition. The die body solves the problem of high-contrast resolution test in a human body long axis direction in CT imaging performance evaluation, can evaluate the high contrast resolution in a direction of 45 degrees in a horizontal plane, and can also evaluate the high contrast resolution of any cross section vertical to the cross section.

Description

technical field [0001] The invention belongs to the technical field of medical detection, and specifically relates to a medical CT three-dimensional spatial resolution detection phantom and a preparation method thereof, which is actually a medical CT three-dimensional high-contrast resolution detection phantom. Background technique [0002] Spatial resolution, that is, high-contrast resolution, is an important parameter in relevant national testing standards, and is used to measure and calibrate the ability of CT equipment to display high-contrast fine structures. The medical phantom is the standard test object for evaluating this parameter, but the existing CT high-contrast resolution test phantoms can only measure the spatial resolution of cross-sectional images, but cannot test the resolution in three-dimensional space. The current reality is that both the phantom and the national standard (WS519-2019) are only for the evaluation of images obtained by cross-sectional laye...

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Application Information

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IPC IPC(8): A61B6/03
CPCA61B6/032A61B6/583
Inventor 牛延涛刘丹丹康天良虞滨滨崔莹刘云福
Owner BEIJING TONGREN HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV