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PET (Positron Emission Tomography) image reconstruction method and system, terminal and readable storage medium

An image reconstruction and image block technology, applied in the field of PET imaging, can solve the problems of loss of image structure details and low image quality

Active Publication Date: 2018-03-27
SHENZHEN INST OF ADVANCED TECH
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Problems solved by technology

[0004] The present invention provides a PET image reconstruction method, system, terminal and readable storage medium, aiming to solve the problem that the existing reconstruction algorithm will cause the loss of structural details of the image and the quality of the reconstructed image is low

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  • PET (Positron Emission Tomography) image reconstruction method and system, terminal and readable storage medium
  • PET (Positron Emission Tomography) image reconstruction method and system, terminal and readable storage medium

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[0069] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail 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 invention, not to limit the present invention.

[0070] As a first embodiment of the present invention, such as figure 1 Shown, a kind of PET image reconstruction method provided by the present invention, the method comprises:

[0071] Step S101: Calculate the PET scan data according to a preset original PET image reconstruction method to obtain an original reconstructed image.

[0072] It should be noted that the method provided in this embodiment is performed on the basis of reconstructed images from PET images obtained by traditional PET image reconstruction methods. Therefore, in step S102, the original reconstructed image is de-falsified an...

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Abstract

The invention belongs to the technical field of PET tomography, and particularly relates to a PET (Positron Emission Tomography) image reconstruction method and system, a terminal and a readable storage medium. The method is characterized in that an original reconstructed image is subjected to artifact removal / noise optimization on the basis of the generation of the original reconstructed image by a traditional PET image reconstruction method, parts of detail structured data lost due to optimization are extracted, meanwhile, the optimized original reconstructed image is used for obtaining a characteristic operator, the lost parts of detail structured data and the characteristic operator are convolved, so that useful detail structures are extracted from the lost information, and then, obtained convolution data is added back to the optimized original reconstructed image to finally obtain a PET reconstructed image. By use of the method, on the basis of the reduction of artifacts and noise, structure detail characteristics are kept, so that integral data is subjected to image reconstruction, so that, the PET reconstructed image which is finally obtained is very high in quality, and the accuracy of the PET reconstructed image is improved.

Description

technical field [0001] The invention belongs to the technical field of PET imaging, and in particular relates to a PET image reconstruction method, system, terminal and readable storage medium. Background technique [0002] Positron Emission Tomography (PET) technology based on feature recovery has been widely used in clinical practice. It is well known that PET scans are quite expensive for patients. number or reduce the amount of radiopharmaceuticals used) to reduce the cost of PET scans. However, the data obtained by low count sampling is incomplete. [0003] For the incomplete sampling problem, PET reconstruction algorithm is needed to reconstruct the incomplete sampling data. However, reconstruction of low-count sampling data with traditional PET reconstruction algorithms will degrade the quality of reconstructed images and produce severe artifacts. Although some existing algorithms can reduce reconstruction artifacts, they will lead to the loss of some detailed feat...

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Application Information

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IPC IPC(8): G06T11/00G06T5/00G06T5/50G06K9/46
CPCG06T5/50G06T11/008G06T2207/20021G06T2207/10104G06T2207/30168G06T2207/20224G06T2211/416G06V10/40G06T5/70
Inventor 胡战利高娟杨永峰梁栋刘新郑海荣
Owner SHENZHEN INST OF ADVANCED TECH
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