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相关论文: Model-based free-breathing cardiac MRI reconstruct…

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Purpose: To investigate whether synthetically generated fractal data can be used to train deep learning (DL) models for dynamic MRI reconstruction, thereby avoiding the privacy, licensing, and availability limitations associated with…

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…

计算机视觉与模式识别 · 计算机科学 2025-07-21 Mojtaba Safari , Zach Eidex , Chih-Wei Chang , Richard L. J. Qiu , Xiaofeng Yang

Clinical MRI encompasses diverse imaging protocols--spanning anatomical targets (cardiac, brain, knee), contrasts (T1, T2, mapping), sampling patterns (Cartesian, radial, spiral, kt-space), and acceleration factors--yet current deep…

计算机视觉与模式识别 · 计算机科学 2026-03-13 Puyang Wang , Pengfei Guo , Keyi Chai , Jinyuan Zhou , Daguang Xu , Shanshan Jiang

We introduce an unsupervised deep manifold learning algorithm for motion-compensated dynamic MRI. We assume that the motion fields in a free-breathing lung MRI dataset live on a manifold. The motion field at each time instant is modeled as…

图像与视频处理 · 电气工程与系统科学 2021-11-23 Qing Zou , Luis A. Torres , Sean B. Fain , Mathews Jacob

Bilinear models that decompose dynamic data to spatial and temporal factors are powerful and memory-efficient tools for the recovery of dynamic MRI data. These methods rely on sparsity and energy compaction priors on the factors to…

图像与视频处理 · 电气工程与系统科学 2021-07-01 Abdul Haseeb Ahmed , Prashant Nagpal , Mathews Jacob

Motion artifacts in Magnetic Resonance Imaging (MRI) are one of the frequently occurring artifacts due to patient movements during scanning. Motion is estimated to be present in approximately 30% of clinical MRI scans; however, motion has…

图像与视频处理 · 电气工程与系统科学 2024-05-29 Zhifeng Chen , Kamlesh Pawar , Kh Tohidul Islam , Himashi Peiris , Gary Egan , Zhaolin Chen

We introduce a novel bandlimited manifold framework and an algorithm to recover freebreathing and ungated cardiac MR images from highly undersampled measurements. The image frames in the free breathing and ungated dataset are assumed to be…

计算机视觉与模式识别 · 计算机科学 2018-02-27 Sunrita Poddar , Yasir Mohsin , Deidra Ansah , Bijoy Thattaliyath , Ravi Ashwath , Mathews Jacob

Purpose: To develop and assess a deep learning (DL) pipeline to learn dynamic MR image reconstruction from publicly available natural videos (Inter4K). Materials and Methods: Learning was performed for a range of DL architectures (VarNet,…

Improving calibration performance in deep learning (DL) classification models is important when planning the use of DL in a decision-support setting. In such a scenario, a confident wrong prediction could lead to a lack of trust and/or harm…

机器学习 · 计算机科学 2024-05-13 Tareen Dawood , Bram Ruijsink , Reza Razavi , Andrew P. King , Esther Puyol-Antón

Late gadolinium enhancement (LGE) cardiac MRI (CMR) is the clinical standard for diagnosis of myocardial scar. 3D isotropic LGE CMR provides improved coverage and resolution compared to 2D imaging. However, image acceleration is required…

图像与视频处理 · 电气工程与系统科学 2021-06-02 Burhaneddin Yaman , Chetan Shenoy , Zilin Deng , Steen Moeller , Hossam El-Rewaidy , Reza Nezafat , Mehmet Akçakaya

First-pass perfusion cardiac magnetic resonance (FPP-CMR) is becoming an essential non-invasive imaging method for detecting deficits of myocardial blood flow, allowing the assessment of coronary heart disease. Nevertheless, acquisitions…

Manifold learning using deep neural networks been shown to be an effective tool for building sophisticated prior image models that can be applied to noise reduction in low-dose CT. We propose a new iterative CT reconstruction algorithm,…

医学物理 · 物理学 2020-10-20 Matthew Tivnan , J. Webster Stayman

Cardiac magnetic resonance imaging (MRI) requires reconstructing a real-time video of a beating heart from continuous highly under-sampled measurements. This task is challenging since the object to be reconstructed (the heart) is…

图像与视频处理 · 电气工程与系统科学 2024-01-12 Johannes F. Kunz , Stefan Ruschke , Reinhard Heckel

In recent years, deep learning has attracted increasing attention in the field of Cardiac MRI (CMR) reconstruction due to its superior performance over traditional methods, particularly in handling higher acceleration factors, highlighting…

计算机视觉与模式识别 · 计算机科学 2026-01-09 Donghang Lyu , Marius Staring , Hildo Lamb , Mariya Doneva

Deep Learning (DL) based methods for magnetic resonance (MR) image reconstruction have been shown to produce superior performance in recent years. However, these methods either only leverage under-sampled data or require a paired…

计算机视觉与模式识别 · 计算机科学 2021-12-17 Pengfei Guo , Vishal M. Patel

Cardiac magnetic resonance imaging (CMR) has been widely used in clinical practice for the medical diagnosis of cardiac diseases. However, the long acquisition time hinders its development in real-time applications. Here, we propose a novel…

图像与视频处理 · 电气工程与系统科学 2024-02-01 Liping Zhang , Weitian Chen

Cardiac magnetic resonance imaging (CMR) is a noninvasive imaging modality that provides a comprehensive evaluation of the cardiovascular system. The clinical utility of CMR is hampered by long acquisition times, however. In this work, we…

图像与视频处理 · 电气工程与系统科学 2020-07-10 Sizhuo Liu , Edward Reehorst , Philip Schniter , Rizwan Ahmad

We present a novel multimodal deep learning framework for cardiac resynchronisation therapy (CRT) response prediction from 2D echocardiography and cardiac magnetic resonance (CMR) data. The proposed method first uses the `nnU-Net'…

图像与视频处理 · 电气工程与系统科学 2021-07-23 Esther Puyol-Antón , Baldeep S. Sidhu , Justin Gould , Bradley Porter , Mark K. Elliott , Vishal Mehta , Christopher A. Rinaldi , Andrew P. King

Model-based deep learning (MoDL) algorithms that rely on unrolling are emerging as powerful tools for image recovery. In this work, we introduce a novel monotone operator learning framework to overcome some of the challenges associated with…

机器学习 · 计算机科学 2021-11-23 Aniket Pramanik , Mathews Jacob

Cardiac magnetic resonance imaging is a valuable non-invasive tool for identifying cardiovascular diseases. For instance, Cine MRI is the benchmark modality for assessing the cardiac function and anatomy. On the other hand, multi-contrast…

图像与视频处理 · 电气工程与系统科学 2023-10-11 George Yiasemis , Nikita Moriakov , Jan-Jakob Sonke , Jonas Teuwen