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Ultrasound shear wave elastography (SWE) is a noninvasive way to measure stiffness of soft tissue for medical diagnosis. In SWE imaging, an acoustic radiation force induces tissue displacement, which creates shear waves (SWs) that travel…

信号处理 · 电气工程与系统科学 2024-07-31 Md. Jahin Alam , Md. Kamrul Hasan

Hippocampal subfield segmentation requires high-resolution T2w turbo spin echo (TSE) MRI, yet this sequence is susceptible to motion artifacts, leading to substantial data loss. We developed a conditional generative model (MRecover) that…

With the advent of deep learning algorithms, fully automated radiological image analysis is within reach. In spine imaging, several atlas- and shape-based as well as deep learning segmentation algorithms have been proposed, allowing for…

Susceptibility Map Weighted Imaging (SMWI) is an advanced magnetic resonance imaging technique used to detect nigral hyperintensity in Parkinsons disease. However, full resolution SMWI acquisition is limited by long scan times. Efficient…

图像与视频处理 · 电气工程与系统科学 2025-12-30 Muhammad Usman , Sung-Min Gho

The main contribution of this paper is to propose an iterative procedure for tubular structure segmentation of 2D images, which combines tight frame of Curvelet transforms with a SURE technique thresholding which is based on principle…

计算机视觉与模式识别 · 计算机科学 2025-06-10 Nasser Aghazadeh , Ladan Sharafyan Cigaroudy

Modern MRI relies on the well-established Echo-Planar-Imaging (EPI) method for fast acquisition. EPI is the workhorse of diffusion and functional MRI in neuroscience as well as of many dynamic applications for clinical body imaging. Its…

Purpose: T2* quantification from gradient echo magnetic resonance imaging is particularly affected by subject motion due to the high sensitivity to magnetic field inhomogeneities, which are influenced by motion and might cause signal loss.…

图像与视频处理 · 电气工程与系统科学 2025-09-11 Hannah Eichhorn , Veronika Spieker , Kerstin Hammernik , Elisa Saks , Lina Felsner , Kilian Weiss , Christine Preibisch , Julia A. Schnabel

The need for tomographic reconstruction from sparse measurements arises when the measurement process is potentially harmful, needs to be rapid, or is uneconomical. In such cases, information from previous longitudinal scans of the same…

图像与视频处理 · 电气工程与系统科学 2019-09-13 Preeti Gopal , Sharat Chandran , Imants Svalbe , Ajit Rajwade

The spinal angle is an important indicator of body balance. It is important to restore the 3D shape of the human body and estimate the spine center line. Existing mul-ti-image-based body restoration methods require expensive equipment and…

计算机视觉与模式识别 · 计算机科学 2026-01-06 Sehyun Kim , Hye Jun Lee , Jiwoo Lee , Changgyun Kim , Taemin Lee

As an emerging technology, transcranial focused ultrasound has been demonstrated to successfully evoke motor responses in mice, rabbits, and sensory/motor responses in humans. Yet, the spatial resolution of ultrasound does not allow for…

神经元与认知 · 定量生物学 2020-12-21 Linli Shi , Ying Jiang , Fernando R. Fernandez , Lu Lan , Guo Chen , Heng-ye Man , John A. White , Ji-Xin Cheng , Chen Yang

The Spreading Projection Algorithm for Rapid K-space samplING, or SPARKLING, is an optimization-driven method that has been recently introduced for accelerated 2D T2*-w MRI using compressed sensing. It has then been extended to address 3D…

分布式、并行与集群计算 · 计算机科学 2021-08-26 Chaithya G R , Pierre Weiss , Guillaume Daval-Frérot , Aurélien Massire , Alexandre Vignaud , Philippe Ciuciu

Purpose: An end-to-end deep convolutional neural network (CNN) based on deep residual network (ResNet) was proposed to efficiently reconstruct reliable T2 mapping from single-shot OverLapping-Echo Detachment (OLED) planar imaging. Methods:…

计算机视觉与模式识别 · 计算机科学 2017-08-18 Congbo Cai , Yiqing Zeng , Chao Wang , Shuhui Cai , Jun Zhang , Zhong Chen , Xinghao Ding , Jianhui Zhong

In plane-wave imaging, multiple unfocused ultrasound waves are transmitted into a medium of interest from different angles and an image is formed from the recorded reflections. The number of plane waves used leads to a trade-off between…

图像与视频处理 · 电气工程与系统科学 2021-11-23 Georgios Pilikos , Chris L. de Korte , Tristan van Leeuwen , Felix Lucka

Promptable video object segmentation and tracking (VOST) has seen significant advances with the emergence of foundation models like Segment Anything Model 2 (SAM2); however, their application in surgical video analysis remains challenging…

计算机视觉与模式识别 · 计算机科学 2025-08-11 Guoping Xu , Hua-Chieh Shao , You Zhang

Neuroanatomical segmentation in magnetic resonance imaging (MRI) of the brain is a prerequisite for volume, thickness and shape measurements. This work introduces a new highly accurate and versatile method based on 3D convolutional neural…

定量方法 · 定量生物学 2019-02-07 Philip Novosad , Vladimir Fonov , D. Louis Collins

Medical image segmentation is one of the domains where sufficient annotated data is not available. This necessitates the application of low-data frameworks like few-shot learning. Contemporary prototype-based frameworks often do not account…

计算机视觉与模式识别 · 计算机科学 2024-08-13 Siladittya Manna , Saumik Bhattacharya , Umapada Pal

Fourier single-pixel imaging (FSI) is a data-efficient single-pixel imaging (SPI). However, there is still a serious challenge to obtain higher imaging quality using fewer measurements, which limits the development of real-time SPI. In this…

图像与视频处理 · 电气工程与系统科学 2023-11-07 Huan Cui , Jie Cao , Qun Hao , Haoyu Zhang , Chang Zhou

The purpose of this work is to demonstrate a robust and clinically validated method for correcting sound speed aberrations in medical ultrasound. We propose a correction method that calculates focusing delays directly from the observed…

Elastic properties of arteries have long been recognized as playing a major role in the cardiovascular system. However, non-invasive in vivo assessment of local arterial stiffness remains challenging and imprecise as current techniques rely…

医学物理 · 物理学 2019-05-03 Clement Papadacci , T. Mirault , B. Dizier , M. Tanter , E. Messas , M. Pernot

Head motion is an omnipresent confounder of magnetic resonance image (MRI) analyses as it systematically affects morphometric measurements, even when visual quality control is performed. In order to estimate subtle head motion, that remains…

图像与视频处理 · 电气工程与系统科学 2026-04-03 Clemens Pollak , David Kügler , Martin Reuter
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