Pet image reconstruction method, system, terminal and readable storage medium

Abstract

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. Based on the original reconstructed image generated by the traditional PET image reconstruction method, the method removes artifacts / noise and optimizes the original reconstructed image, and extracts part of the detailed structural data lost due to optimization. At the same time, the optimized original Reconstruct the image to obtain the feature operator, convolve the missing part of the detailed structure data with the feature operator, thereby extracting the useful detailed structure from the lost information, and then add the obtained convolution data back to the optimized original reconstructed image , and finally obtain the PET reconstruction image. On the basis of reducing artifacts and noise, the method retains structural detail features, thereby performing image reconstruction on complete data, so that the finally obtained PET reconstruction image has very high quality, and improves the accuracy of PET reconstruction image.

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...

AI Technical Summary

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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