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[Keyword] dual-stream(1hit)

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  • Artifact Removal Using Attention Guided Local-Global Dual-Stream Network for Sparse-View CT Reconstruction Open Access

    Chang SUN  Yitong LIU  Hongwen YANG  

     
    LETTER-Biological Engineering

      Pubricized:
    2024/03/29
      Vol:
    E107-D No:8
      Page(s):
    1105-1109

    Sparse-view CT reconstruction has gained significant attention due to the growing concerns about radiation safety. Although recent deep learning-based image domain reconstruction methods have achieved encouraging performance over iterative methods, effectively capturing intricate details and organ structures while suppressing noise remains challenging. This study presents a novel dual-stream encoder-decoder-based reconstruction network that combines global path reconstruction from the entire image with local path reconstruction from image patches. These two branches interact through an attention module, which enhances visual quality and preserves image details by learning correlations between image features and patch features. Visual and numerical results show that the proposed method has superior reconstruction capabilities to state-of-the-art 180-, 90-, and 45-view CT reconstruction methods.