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Image quality evaluation method, PET-MR system, electronic device and storage medium

An image quality assessment, PET-MR technology, applied in the field of image quality assessment, electronic devices and storage media, PET-MR systems, can solve the problems of inability to obtain magnetic resonance signals and low image accuracy

Active Publication Date: 2021-05-28
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Application Information

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Problems solved by technology

[0005] The embodiment of the present application provides an image quality assessment method, a PET-MR system, an electronic device, and a storage medium, so as to at least solve the problem in the related art that the accuracy of image attenuation correction is relatively low due to the inability to obtain magnetic resonance signals with different tissue densities. low problem

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  • Image quality evaluation method, PET-MR system, electronic device and storage medium
  • Image quality evaluation method, PET-MR system, electronic device and storage medium
  • Image quality evaluation method, PET-MR system, electronic device and storage medium

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Embodiment Construction

[0045] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be described and explained below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application. Based on the embodiments provided in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application. In addition, it can also be understood that although such development efforts may be complex and lengthy, for those of ordinary skill in the art relevant to the content disclosed in this application, the technology disclosed in this application Some design, manufacturing or production changes based on the content are just conventional technical means, and should not be understo...

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Abstract

The invention relates to an image quality evaluation method, a PET-MR system, an electronic device and a storage medium, and the image quality evaluation method comprises the steps: obtaining a PET-CT image scanning protocol, obtaining scanning data according to the PET-CT image scanning protocol, and obtaining a mapping relation according to the scanning data, the mapping relation being a relation between PET data and a CT image in the PET-CT system; carrying out attenuation correction on PET data in the PET-MR system according to the mapping relation; performing image reconstruction according to the PET data after attenuation correction to obtain a reconstructed image; and carrying out image quality evaluation on the PET-MR system according to the reconstructed image. According to the invention, the problem that in the prior art, due to the fact that magnetic resonance signals of different tissue densities cannot be obtained, the precision is low when attenuation correction is conducted on the image is solved, and the precision of attenuation correction in a PET-MR system is improved.

Description

technical field [0001] The application relates to the technical field of medical equipment, in particular to an image quality assessment method, a PET-MR system, an electronic device and a storage medium. Background technique [0002] The multi-modal medical imaging scanning system is often affected by many factors during imaging. Among many factors, the attenuation effect is also an important factor affecting the imaging quality. In addition to causing count loss and quantitative inaccuracy, attenuation will also cause image loss. unevenness and distortion. Therefore, in the whole simulation test process, it is necessary to use the reconstruction algorithm for attenuation correction. [0003] In the related art, attenuation correction only considers liquid-filled phantoms, since liquid can provide sufficient magnetic resonance signals. However, since materials such as glass and plastic cannot be detected by magnetic resonance signals, the attenuation correction cannot be ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T5/00G06T11/00G06T7/30
CPCG06T7/0012G06T11/005G06T7/30G06T2207/10104G06T2207/10088G06T2207/30168G06T5/00Y02P90/30
Inventor 马润霞吉子军
Owner SHANGHAI UNITED IMAGING HEALTHCARE