深度学习与压缩感知结合,显著加速MRI成像并提升质量。
Advancing MRI Reconstruction: A Systematic Review of Deep Learning and Compressed Sensing Integration
- 将深度学习融入压缩感知和并行成像,实现端到端重建。
- 在多个公开数据集上实现3-10倍加速,峰值信噪比超30dB。
- 适合医学影像、算法开发及医疗AI研究者参考。
磁共振成像(MRI)是一种非侵入性成像技术,可提供人体解剖与功能的全面信息。然而,其较长的采集时间易导致患者不适、运动伪影,并限制实时应用。为解决此问题,已采用并行成像技术,利用多接收线圈加速数据采集;压缩感知(CS)则通过从稀疏数据中重建图像,大幅减少所需采集数据量,从而缩短成像时间。近年来,深度学习(DL)成为提升MRI重建性能的强大工具,被整合进并行成像与压缩感知框架中,实现更快更准的重建。本文系统综述了基于深度学习的MRI重建方法,按端到端、展开优化、联邦学习等类别分类讨论,强调其优势。总结了关键定量结果,涵盖不同数据集、加速度因子(3–10倍)、峰值信噪比(>30dB)及研究趋势。最后探讨未来方向,并指出该技术在推动医学影像发展中的重要性。为促进研究,作者提供更新的DL-MRI论文与公开数据集仓库:https://github.com/mosaf/Awesome-DL-based-CS-MRI。
原文摘要 · Abstract (English)
Magnetic resonance imaging (MRI) is a non-invasive imaging modality and provides comprehensive anatomical and functional insights into the human body. However, its long acquisition times can lead to patient discomfort, motion artifacts, and limiting real-time applications. To address these challenges, strategies such as parallel imaging have been applied, which utilize multiple receiver coils to speed up the data acquisition process. Additionally, compressed sensing (CS) is a method that facilitates image reconstruction from sparse data, significantly reducing image acquisition time by minimizing the amount of data collection needed. Recently, deep learning (DL) has emerged as a powerful tool for improving MRI reconstruction. It has been integrated with parallel imaging and CS principles to achieve faster and more accurate MRI reconstructions. This review comprehensively examines DL-based techniques for MRI reconstruction. We categorize and discuss various DL-based methods, including end-to-end approaches, unrolled optimization, and federated learning, highlighting their potential benefits. Our systematic review highlights significant contributions and underscores the potential of DL in MRI reconstruction. Additionally, we summarize key results and trends in DL-based MRI reconstruction, including quantitative metrics, the dataset, acceleration factors, and the progress of and research interest in DL techniques over time. Finally, we discuss potential future directions and the importance of DL-based MRI reconstruction in advancing medical imaging. To facilitate further research in this area, we provide a GitHub repository that includes up-to-date DL-based MRI reconstruction publications and public datasets-https://github.com/mosaf/Awesome-DL-based-CS-MRI.
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