Pet image acquisition method and system

An image acquisition and CT image technology, applied in the field of image processing, can solve the problems of cumbersome process and poor clinical experience.

Active Publication Date: 2021-01-29
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a PET image acquisition method and system to solve the problems in the prior art that each acquisition of a PET image needs to be based on the CT scan of the CT image, the process is cumbersome, and the clinical experience is poor

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  • Pet image acquisition method and system
  • Pet image acquisition method and system

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Embodiment Construction

[0052] The PET image acquisition method and system proposed by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0053] Please refer to figure 1 , which is a flow chart of the PET image acquisition method in Embodiment 1 of the present invention;

[0054] A PET image acquisition method, comprising the following steps:

[0055] S1. Obtain the PET scan data and CT scan data at the first time point, perform image reconstruction on the PET scan data at the first time point, and obtain the first PET image Img 1 , performing image reconstruction on the CT scan data at the ...

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Abstract

The invention discloses a PET image acquisition method and system. The method includes the following steps: acquiring PET scan data and CT scan data at a first time point, and obtaining the first PET image Img 1 and the first CT image Img 0 ; Obtain the PET scan data and the second PET image Img at the second time point 2 , and the second PET image is not subjected to CT attenuation correction during reconstruction; the second PET image Img 2 with the first PET image Img 1 Perform registration to obtain the deformation field data TF between the two images 12 , apply it to the first CT image Img 0 , to obtain the attenuation correction term U of the second PET image 2 , and according to the SSS model, the scatter correction term S of the second PET image is obtained 2 ; Obtain the final second PET image attenuation correction item U 2final and the scatter correction term S 2final ; Obtain the final second PET image.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a PET image acquisition method and system. Background technique [0002] Positron Emission Computed Tomography (PET) is a neurographic examination instrument developed rapidly after computerized tomography (Computed Tomography, CT). At present, it has highlighted the important value in the diagnosis and treatment of the three major diseases of tumor, coronary heart disease and brain disease, and it is a relatively advanced clinical examination imaging technology in the field of nuclear medicine. It can inject radioactive tracers into living organisms without changing the physiological state, and participate in the physiological metabolism of living organisms. The positrons produced by the decay of the tracer markers, and the annihilation effect of the positrons, produce reversely emitted 511keVγ photon pairs. Use coincidence detection technology to detect pairs...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B6/03
CPCA61B6/037A61B6/486A61B6/5235
Inventor 朱闻韬陈牧李弘棣
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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