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PET (positron emission tomography) imaging system and multi-model medical image processing system

An imaging system, TOF-PET technology, applied in image data processing, medical science, image enhancement, etc., can solve the problems of reduced resolution imaging quantitative accuracy, PET imaging resolution and contrast effects, etc. Reduce the effect of precision degradation

Active Publication Date: 2017-09-08
SHANGHAI UNITED IMAGING HEALTHCARE
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Problems solved by technology

[0005] However, in the latest TOF-PET scanners, while the coincidence count acquisition for all oblique response lines increases the sensitivity of the system relative to conventional 2D and extended 2D data acquisition modes, it also introduces a large number of scattered coincidence counts, This reduces the resolution of the system and the quantitative accuracy of imaging; similarly, in data acquisition using a lead or tungsten baffle, the photon scattering generated on the baffle will also greatly affect the resolution and contrast of PET imaging. Impact

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  • PET (positron emission tomography) imaging system and multi-model medical image processing system
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[0069] Some embodiments of the present application will be described below. It should be pointed out that, in the process of describing these implementations, for the sake of concise description, it is impossible for this specification to describe all the features of the actual implementations in detail.

[0070] Obviously, the accompanying drawings in the following description are only some examples or embodiments of the present application, and those skilled in the art can also apply the present application to other similar scenarios. 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 understood as insufficient content disclosed in this application.

[0071]...

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Abstract

The invention provides a PET (positron emission tomography) imaging system which comprises a processor and a storage. The storage is used for storing executable instructions of the processor; the processor is configured in such a manner that the TOF-PET (time of flight-PET) data of target regions of patients can be acquired, PET images of the target regions can be acquired according to coincidence event data, initial scattering estimation for TOF-PET imaging can be acquired on the basis of the PET images and the TOF-PET data, the initial scattering estimation can be corrected and processed to obtain scattering estimation for TOF-PET imaging and scattering correction can be carried out on the TOF-PET data on the basis of the scattering estimation for TOF-PET imaging, and the TOF-PET data comprise the coincidence event data and TOF information. The PET imaging system has the advantages that the precision of the scattering estimation can be enhanced, and the quality of TOF-PET images can be improved. The invention further provides a multi-model medical image processing system.

Description

[0001] This application is a divisional case of a Chinese patent application submitted to the China Patent Office on December 29, 2016 with the application number 201611244336.8 and the title of the invention "a PET scattering correction method, PET imaging method and PET imaging system". technical field [0002] The present application relates to the technical field of Positron Emission Tomography (PET), and in particular to a PET imaging system and a multimodal medical image processing system based on Time of Flight (TOF) positron emission tomography. Background technique [0003] Positron emission computed tomography is a non-invasive medical imaging technique to detect the metabolic characteristics of human or animal organs. It has the characteristics of high sensitivity, good accuracy and accurate positioning. In PET imaging, the radiopharmaceutical that can emit positrons is injected into the organism, and the positrons annihilate with the electrons in the organism, pro...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/03G06T7/00
CPCA61B6/037A61B6/5205A61B6/5229A61B6/5282G06T7/0012G06T11/005G06T2207/10081G06T2207/10088G06T2207/10104G06T2211/421G06T2211/424
Inventor 朱闻韬李弘棣
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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