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相关论文: Physics-Aware Motion Simulation for T2*-Weighted B…

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Magnetic resonance imaging (MRI) is a versatile imaging technique that allows different contrasts depending on the acquisition parameters. Many clinical imaging studies acquire MRI data for more than one of these contrasts---such as for…

数值分析 · 数学 2017-10-06 Matthias J. Ehrhardt , Marta M. Betcke

We present a microstructure imaging technique for estimating compartment-specific T2 and T2* simultaneously in the human brain. Microstructure imaging with diffusion MRI (dMRI) has enabled the modelling of intra-neurite and extra-neurite…

医学物理 · 物理学 2024-08-21 Ting Gong , Merlin J. Fair , Kawin Setsompop , Hui Zhang

Computational biomechanics of the brain for neurosurgery is an emerging area of research recently gaining in importance and practical applications. This review paper presents the contributions of the Intelligent Systems for Medicine…

计算工程、金融与科学 · 计算机科学 2019-04-03 K. Miller , G. R. Joldes , G. Bourantas , S. K. Warfield , D. E. Hyde , R. Kikinis , A. Wittek

We apply Physics-Informed Neural Networks (PINNs) for solving identification problems of nonhomogeneous materials. We focus on the problem with a background in elasticity imaging, where one seeks to identify the nonhomogeneous mechanical…

机器学习 · 计算机科学 2020-09-11 Enrui Zhang , Minglang Yin , George Em Karniadakis

Patient motion during medical image acquisition causes blurring, ghosting, and distorts organs, which makes image interpretation challenging. Current state-of-the-art algorithms using Generative Adversarial Network (GAN)-based methods with…

图像与视频处理 · 电气工程与系统科学 2025-05-12 Andrew Zhang , Hao Wang , Shuchang Ye , Michael Fulham , Jinman Kim

Motion planning and obstacle avoidance is a key challenge in robotics applications. While previous work succeeds to provide excellent solutions for known environments, sensor-based motion planning in new and dynamic environments remains…

机器人学 · 计算机科学 2021-03-24 Robin Strudel , Ricardo Garcia , Justin Carpentier , Jean-Paul Laumond , Ivan Laptev , Cordelia Schmid

Identifying accurate dynamic models is required for the simulation and control of various technical systems. In many important real-world applications, however, the two main modeling approaches often fail to meet requirements: first…

机器学习 · 计算机科学 2021-04-19 Manuel A. Roehrl , Thomas A. Runkler , Veronika Brandtstetter , Michel Tokic , Stefan Obermayer

A brain--machine interface (BMI) based on motor imagery (MI) enables the control of devices using brain signals while the subject imagines performing a movement. It plays a vital role in prosthesis control and motor rehabilitation. To…

信号处理 · 电气工程与系统科学 2024-09-20 Xiaying Wang , Michael Hersche , Michele Magno , Luca Benini

Magnetic resonance imaging (MRI) is a potent diagnostic tool for detecting pathological tissues in various diseases. Different MRI sequences have different contrast mechanisms and sensitivities for different types of lesions, which pose…

计算机视觉与模式识别 · 计算机科学 2025-05-13 Lijun Yan , Churan Wang , Fangwei Zhong , Yizhou Wang

Magnetic-anomaly navigation, leveraging small-scale variations in the Earth's magnetic field, is a promising alternative when GPS is unavailable or compromised. Airborne systems face a key challenge in extracting geomagnetic field data: the…

机器学习 · 计算机科学 2026-05-13 Aritra Das , Yashas Shende , Muskaan Chugh , Reva Laxmi Chauhan , Arghya Pathak , Debayan Gupta

Multiple sclerosis (MS) is an inflammatory and neurodegenerative disease characterized by diffuse and focal areas of tissue loss. Conventional MRI techniques such as T1-weighted and T2-weighted scans are generally used in the diagnosis and…

Supervised Deep-Learning (DL)-based reconstruction algorithms have shown state-of-the-art results for highly-undersampled dynamic Magnetic Resonance Imaging (MRI) reconstruction. However, the requirement of excessive high-quality…

图像与视频处理 · 电气工程与系统科学 2025-11-11 Jie Feng , Ruimin Feng , Qing Wu , Zhiyong Zhang , Yuyao Zhang , Hongjiang Wei

Magnetic resonance imaging (MRI) is the method of choice for noninvasive studies of micrometer-scale structures in biological tissues via their effects on the time/frequency-dependent ("restricted") and anisotropic self-diffusion of water.…

Physiological motion, such as cardiac and respiratory motion, during Magnetic Resonance (MR) image acquisition can cause image artifacts. Motion correction techniques have been proposed to compensate for these types of motion during…

图像与视频处理 · 电气工程与系统科学 2021-07-21 Thomas Küstner , Jiazhen Pan , Haikun Qi , Gastao Cruz , Christopher Gilliam , Thierry Blu , Bin Yang , Sergios Gatidis , René Botnar , Claudia Prieto

Accurate intraoperative image guidance is critical for achieving maximal safe resection in brain tumor surgery, yet neuronavigation systems based on preoperative MRI lose accuracy during the procedure due to brain shift. Aligning…

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

Magnetic Resonance Imaging (MRI) is a noninvasive imaging technique that provides excellent soft-tissue contrast without using ionizing radiation. MRI's clinical application may be limited by long data acquisition time; therefore, MR image…

图像与视频处理 · 电气工程与系统科学 2020-12-11 Shen Zhao , Lee C. Potter , Rizwan Ahmad

Functional magnetic resonance imaging (fMRI) is a neuroimaging technique that records neural activations in the brain by capturing the blood oxygen level in different regions based on the task performed by a subject. Given fMRI data, the…

计算机视觉与模式识别 · 计算机科学 2021-09-21 Ashish Jaiswal , Ashwin Ramesh Babu , Mohammad Zaki Zadeh , Fillia Makedon , Glenn Wylie

Functional magnetic resonance imaging (fMRI) based image reconstruction plays a pivotal role in decoding human perception, with applications in neuroscience and brain-computer interfaces. While recent advancements in deep learning and…

计算机视觉与模式识别 · 计算机科学 2025-02-25 Weiyu Guo , Guoying Sun , JianXiang He , Tong Shao , Shaoguang Wang , Ziyang Chen , Meisheng Hong , Ying Sun , Hui Xiong

Magnetic resonance imaging (MRI) nowadays serves as an important modality for diagnostic and therapeutic guidance in clinics. However, the {\it slow acquisition} process, the dynamic deformation of organs, as well as the need for {\it…

机器学习 · 计算机科学 2016-09-15 Morteza Mardani , Georgios B. Giannakis , Kamil Ugurbil