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We propose a novel unsupervised deep-learning-based algorithm for dynamic magnetic resonance imaging (MRI) reconstruction. Dynamic MRI requires rapid data acquisition for the study of moving organs such as the heart. Existing reconstruction…

图像与视频处理 · 电气工程与系统科学 2021-01-26 Jaejun Yoo , Kyong Hwan Jin , Harshit Gupta , Jerome Yerly , Matthias Stuber , Michael Unser

This paper proposes to learn analysis transform network for dynamic magnetic resonance imaging (LANTERN) with small dataset. Integrating the strength of CS-MRI and deep learning, the proposed framework is highlighted in three components:…

图像与视频处理 · 电气工程与系统科学 2019-08-27 Shanshan Wang , Yanxia Chen , Taohui Xiao , Ziwen Ke , Qiegen Liu , Hairong Zheng

Magnetic resonance imaging has been widely applied in clinical diagnosis, however, is limited by its long data acquisition time. Although imaging can be accelerated by sparse sampling and parallel imaging, achieving promising reconstruction…

图像与视频处理 · 电气工程与系统科学 2020-08-26 Tieyuan Lu , Xinlin Zhang , Yihui Huang , Yonggui Yang , Gang Guo , Lijun Bao , Feng Huang , Di Guo , Xiaobo Qu

This study proposes a novel deep-learning-based method for generating reduced representations of turbulent flows that ensures efficient storage and transfer while maintaining high accuracy during decompression. A Swin-Transformer network…

流体动力学 · 物理学 2023-09-19 Meng Zhang , Mustafa Z Yousif , Linqi Yu , HeeChang Lim

MRI provides superior soft tissue contrast without ionizing radiation; however, the absence of electron density information limits its direct use for dose calculation. As a result, current radiotherapy workflows rely on combined MRI and CT…

计算机视觉与模式识别 · 计算机科学 2026-02-06 Zolnamar Dorjsembe , Hung-Yi Chen , Furen Xiao , Hsing-Kuo Pao

Modeling spatiotemporal brain dynamics from high-dimensional data, such as functional Magnetic Resonance Imaging (fMRI), is a formidable task in neuroscience. Existing approaches for fMRI analysis utilize hand-crafted features, but the…

计算机视觉与模式识别 · 计算机科学 2023-11-01 Peter Yongho Kim , Junbeom Kwon , Sunghwan Joo , Sangyoon Bae , Donggyu Lee , Yoonho Jung , Shinjae Yoo , Jiook Cha , Taesup Moon

Dynamic magnetic resonance imaging (dMRI) captures temporally-resolved anatomy but is often challenged by limited sampling and motion-induced artifacts. Conventional motion-compensated reconstructions typically rely on pre-estimated optical…

计算机视觉与模式识别 · 计算机科学 2025-11-24 Baoqing Li , Yuanyuan Liu , Congcong Liu , Qingyong Zhu , Jing Cheng , Yihang Zhou , Hao Chen , Zhuo-Xu Cui , Dong Liang

Single-shot magnetic resonance (MR) imaging acquires the entire k-space data in a single shot and it has various applications in whole-body imaging. However, the long acquisition time for the entire k-space in single-shot fast spin echo…

图像与视频处理 · 电气工程与系统科学 2024-09-13 Hemant Kumar Aggarwal , Sudhanya Chatterjee , Dattesh Shanbhag , Uday Patil , K. V. S. Hari

Magnetic resonance imaging (MRI) is a crucial tool for clinical diagnosis while facing the challenge of long scanning time. To reduce the acquisition time, fast MRI reconstruction aims to restore high-quality images from the undersampled…

图像与视频处理 · 电气工程与系统科学 2025-03-14 Yucong Meng , Zhiwei Yang , Minghong Duan , Yonghong Shi , Zhijian Song

Currently, the deep neural network is the mainstream for machine learning, and being actively developed for biomedical imaging applications with an increasing emphasis on tomographic reconstruction for MRI, CT, and other imaging modalities.…

医学物理 · 物理学 2018-05-31 Qing Lyu , Tao Xu , Hongming Shan , Ge Wang

Magnetic resonance imaging is a powerful imaging modality that can provide versatile information but it has a bottleneck problem "slow imaging speed". Reducing the scanned measurements can accelerate MR imaging with the aid of powerful…

图像与视频处理 · 电气工程与系统科学 2020-12-17 Shanshan Wang , Taohui Xiao , Qiegen Liu , Hairong Zheng

Deep learning (DL) has recently emerged as a pivotal technology for enhancing magnetic resonance imaging (MRI), a critical tool in diagnostic radiology. This review paper provides a comprehensive overview of recent advances in DL for MRI…

机器学习 · 计算机科学 2024-04-25 Reinhard Heckel , Mathews Jacob , Akshay Chaudhari , Or Perlman , Efrat Shimron

Portable low-field magnetic resonance imaging (MRI) systems have gained renewed interest owing to their cost effectiveness and point-of-care imaging capabilities. Yet, portable MRI systems suffer from relatively low signal-to-noise ratio…

Objective:This study introduces a residual error-shifting mechanism that drastically reduces sampling steps while preserving critical anatomical details, thus accelerating MRI reconstruction. Approach:We propose a novel diffusion-based SR…

计算机视觉与模式识别 · 计算机科学 2026-01-16 Mojtaba Safari , Shansong Wang , Zach Eidex , Qiang Li , Erik H. Middlebrooks , David S. Yu , Xiaofeng Yang

Compressed Sensing (CS) significantly speeds up Magnetic Resonance Image (MRI) processing and achieves accurate MRI reconstruction from under-sampled k-space data. According to the current research, there are still several problems with…

图像与视频处理 · 电气工程与系统科学 2023-10-24 Junpeng Tan , Chunmei Qing , Xiangmin Xu

Variations in Magnetic resonance imaging (MRI) scanners and acquisition protocols cause distribution shifts that degrade reconstruction performance on unseen data. Test-time adaptation (TTA) offers a promising solution to address this…

图像与视频处理 · 电气工程与系统科学 2025-07-15 Lipei Zhang , Rui Sun , Zhongying Deng , Yanqi Cheng , Carola-Bibiane Schönlieb , Angelica I Aviles-Rivero

Deep learning (DL) has emerged as a tool for improving accelerated MRI reconstruction. A common strategy among DL methods is the physics-based approach, where a regularized iterative algorithm alternating between data consistency and a…

图像与视频处理 · 电气工程与系统科学 2020-07-03 Burhaneddin Yaman , Seyed Amir Hossein Hosseini , Steen Moeller , Jutta Ellermann , Kâmil Uǧurbil , Mehmet Akçakaya

3D Swin Transformer (3D-ST) known for its hierarchical attention and window-based processing, excels in capturing intricate spatial relationships within images. Spatial-spectral Transformer (SST), meanwhile, specializes in modeling…

计算机视觉与模式识别 · 计算机科学 2024-09-27 Muhammad Ahmad , Manuel Mazzara , Salvatore Distifano

Parallel MRI is a fast imaging technique that enables the acquisition of highly resolved images in space. It relies on $k$-space undersampling and multiple receiver coils with complementary sensitivity profiles in order to reconstruct a…

Deep learning has shown astonishing performance in accelerated magnetic resonance imaging (MRI). Most state-of-the-art deep learning reconstructions adopt the powerful convolutional neural network and perform 2D convolution since many…

图像与视频处理 · 电气工程与系统科学 2021-12-10 Zi Wang , Chen Qian , Di Guo , Hongwei Sun , Rushuai Li , Bo Zhao , Xiaobo Qu