信息化研究2024,Vol.50Issue(4) :28-32,52.

基于双域变化编解码网络的CT截断伪影去除算法

CT Truncation Artifact Removal Algorithm Based on Dual-Domain Change Encoding and Decoding Network

黄新海 黄昕宇
信息化研究2024,Vol.50Issue(4) :28-32,52.

基于双域变化编解码网络的CT截断伪影去除算法

CT Truncation Artifact Removal Algorithm Based on Dual-Domain Change Encoding and Decoding Network

黄新海 1黄昕宇1
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作者信息

  • 1. 东南大学生物科学与医学工程学院,南京,210096
  • 折叠

摘要

CT的内重建问题对于医学影像是一个长期的挑战,由于拍摄时视场较小,会让CT图像上出现截断伪影,它们会严重降低图像质量并影响诊断.因此,本文提出了一种基于双域变换的编解码网络(Dual-Domain U-Net)模型,这个模型能够同时对投影域和图像域进行参数的调整,增强了模型的鲁棒性和保真性.本文在美国医学物理学家协会(AAPM)和国家癌症研究所的癌症成像档案馆(TCIA)的20个公共数据集上验证了模型的有效性.实验结果表明,本文提出的模型可以去除CT图像上的截断伪影,并且在图像细节保留方面的表现也更加优秀.

Abstract

The interior reconstruction problem in CT has been a long-standing challenge in medical ima-ging.Due to the small field of view during acquisition,truncation artifacts may appear on CT images,signifi-cantly reducing image quality and impacting diagnosis.Therefore,we propose a dual-domain transformation en-coding-decoding network model(Dual-domain U-Net).This model can simultaneously adjust parameters in both the projection domain and the image domain,enhancing the robustness and fidelity of the model.We validated the effectiveness of the model on 20 public datasets from the Cancer Imaging Archive(TCIA)of the American Association of Physicists in Medicine(AAPM)and the National Cancer Institute.Experimental results demon-strate that our proposed model can remove truncation artifacts on CT images and exhibit superior performance in preserving image details.

关键词

CT/截断伪影/编解码网络/双域网络

Key words

CT/truncation artifacts/encoding-decoding network/dual-domain network

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基金项目

国家重点研发计划项目(2022YFF0710800)

出版年

2024
信息化研究
江苏省电子学会

信息化研究

影响因子:0.218
ISSN:1674-4888
参考文献量2
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