2023
DOI: 10.1088/1361-6560/ace240
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Low-count PET image reconstruction based on truncated inverse radon layer and U-shaped network

Abstract: Objective: Positron emission tomography (PET) is a functional imaging widely used in various applications such as tumour detection. PET image reconstruction is an ill-posed inverse problem, and the model-based iterative reconstruction methods commonly used in clinical practice have disadvantages such as long time consumption and low signal-to-noise ratio, especially at low doses. Approach: In this study, we propose a deep learning-based reconstruction method that is capable of reconstructing images directly fr… Show more

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