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High precision phantom commonly used by cone-beam CT

A high-precision, cone-beam technology, used in radiological diagnostic instruments, applications, medical science, etc., can solve the problems of expensive and individually targeted detection phantoms, and the use range is not wide, achieving cost savings and detection. Efficient effect

Active Publication Date: 2017-11-17
TAISHAN MEDICAL UNIV
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  • Abstract
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Problems solved by technology

Due to the limited scope of use, there are only expensive and individually targeted detection phantoms, and there is no comprehensive image quality detection phantom suitable for both Micro-CT and dental cone-beam CT.

Method used

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  • High precision phantom commonly used by cone-beam CT
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  • High precision phantom commonly used by cone-beam CT

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Embodiment Construction

[0036] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0037] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0038] As introduced in the background technology, there is no comprehensive image quality detection phantom sui...

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Abstract

The invention discloses a high precision phantom commonly used by cone-beam CT. The high precision phantom solves the problem that in the existing technology, no image quality detection phantom is suitable for Micro-CT and dental cone-beam CT at the same time, and the phantom has the effects of high detection efficiency and cost reduction. According to the technical scheme, the phantom includes a rectangular shell body 1 which is internally provided with a cylindrical cavity 2, and seven detection modules are arranged inside the cylindrical cavity 2, and includes a spatial resolution detection module, a low contrast resolution detection module, a three-dimensional pixel value detection module, a seam thickness detection module, a gland simulation module, a tooth bone simulation module and a geometric distortion and CT value calibration module.

Description

technical field [0001] The invention relates to the field of model moulds, in particular to a common high-precision phantom for cone-beam CT. Background technique [0002] At present, cone-beam CT is widely used in dental diagnosis, and Micro-CT, which is used in the field of small animal X-ray imaging in scientific research, is also a cone-beam CT. Cone beam CT has ultra-high spatial resolution, fine slice thickness, and low radiation dose. It is a more advanced X-ray imaging equipment. Due to the limited scope of use, there are only expensive and individually targeted detection phantoms. At present, there is no comprehensive image quality detection phantom that is suitable for both Micro-CT and dental cone-beam CT. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the present invention provides a common high-precision phantom for cone-beam CT, which has the effect of being applicable to the detection of dental cone-beam CT and M...

Claims

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Application Information

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IPC IPC(8): A61B6/00
CPCA61B6/58
Inventor 张琛邱建峰石丽婷孙勇
Owner TAISHAN MEDICAL UNIV
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