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Quantitative assessment of left ventricle (LV) function from cine MRI has significant diagnostic and prognostic value for cardiovascular disease patients. The temporal movement of LV provides essential information on the…

计算机视觉与模式识别 · 计算机科学 2018-10-23 Wenjun Yan , Yuanyuan Wang , Zeju Li , Rob J. van der Geest , Qian Tao

Cardiac motion estimation and segmentation play important roles in quantitatively assessing cardiac function and diagnosing cardiovascular diseases. In this paper, we propose a novel deep learning method for joint estimation of motion and…

计算机视觉与模式识别 · 计算机科学 2018-06-12 Chen Qin , Wenjia Bai , Jo Schlemper , Steffen E. Petersen , Stefan K. Piechnik , Stefan Neubauer , Daniel Rueckert

Neural video compression (NVC) has demonstrated superior compression efficiency, yet effective rate control remains a significant challenge due to complex temporal dependencies. Existing rate control schemes typically leverage frame content…

图像与视频处理 · 电气工程与系统科学 2026-02-03 Wuyang Cong , Junqi Shi , Lizhong Wang , Weijing Shi , Ming Lu , Hao Chen , Zhan Ma

This work focuses on the optimization of the training trajectory orientation using a robot as an advanced exercise machine (AEM) and muscle activations as biofeedback. Muscle recruitment patterns depend on trajectory parameters of the AEMs…

机器人学 · 计算机科学 2021-04-26 Humberto De las Casas , Nicholas Chambers , Hanz Richter , Kenneth Sparks

The lack of large video databases obtained from real patients with respiratory disorders makes the design and optimization of video-based monitoring systems quite critical. The purpose of this study is the development of suitable models and…

应用统计 · 统计学 2023-07-14 Davide Alinovi , Gianluigi Ferrari , Francesco Pisani , Riccardo Raheli

Diffusion tensor based cardiovascular magnetic resonance (DT-CMR) offers a non-invasive method to visualize the myocardial microstructure. With the assumption that the heart is stationary, frames are acquired with multiple repetitions for…

Heart failure is a leading cause of mortality in the Western world. The mouse is a widely used model for a number of diseases, induced by genetic modification or surgical intervention. When performing experiments in mice, in vivo magnetic…

医学物理 · 物理学 2022-01-11 Guido Buonincontri

The goal of MRI reconstruction is to restore a high fidelity image from partially observed measurements. This partial view naturally induces reconstruction uncertainty that can only be reduced by acquiring additional measurements. In this…

计算机视觉与模式识别 · 计算机科学 2019-02-11 Zizhao Zhang , Adriana Romero , Matthew J. Muckley , Pascal Vincent , Lin Yang , Michal Drozdzal

Conventional electromyography (EMG) measures the continuous neural activity during muscle contraction, but lacks explicit quantification of the actual contraction. Mechanomyography (MMG) and accelerometers only measure body surface motion,…

人机交互 · 计算机科学 2022-11-08 Zijing Zhang , Edwin C. Kan

The realisation of precision cardiology requires novel techniques for the non-invasive characterisation of individual patients' cardiac function to inform therapeutic and diagnostic decision-making. The electrocardiogram (ECG) is the most…

Purpose To develop and evaluate a deep learning-based method (MC-Net) to suppress motion artifacts in brain magnetic resonance imaging (MRI). Methods MC-Net was derived from a UNet combined with a two-stage multi-loss function. T1-weighted…

图像与视频处理 · 电气工程与系统科学 2022-10-26 Lei Zhang , Xiaoke Wang , Michael Rawson , Radu Balan , Edward H. Herskovits , Elias Melhem , Linda Chang , Ze Wang , Thomas Ernst

Velocity-encoded MRI is an imaging technique used in different areas to assess flow motion. Some applications include medical imaging such as cardiovascular blood flow studies, and industrial settings in the areas of rheology, pipe flows,…

图像与视频处理 · 电气工程与系统科学 2019-08-16 Veronica Corona , Martin Benning , Lynn F. Gladden , Andi Reci , Andrew J. Sederman , Carola-Bibiane Schoenlieb

Purpose: Most MR spectroscopy (MRS) pulse sequences rely on broadband excitation with water saturation and typically focus on upfield signals. By contrast, the downfield spectrum, which contains many potentially useful resonances, is…

医学物理 · 物理学 2019-05-23 Sónia I. Gonçalves , Clémence Ligneul , Noam Shemesh

2D cine phase contrast (CPC) MRI provides quantitative information on blood velocity and flow within the human vasculature. However, data acquisition is time-consuming, motivating the reconstruction of the velocity field from undersampled…

图像与视频处理 · 电气工程与系统科学 2026-01-21 Pablo Arratia , Martin J. Graves , Mary McLean , Carolin Pirkl , Carola-Bibiane Schönlieb , Timo Schirmer , Florian Wiesinger , Matthias J. Ehrhardt

Cardiac motion estimation is critical to the assessment of cardiac function. Myocardium feature tracking (FT) can directly estimate cardiac motion from cine MRI, which requires no special scanning procedure. However, current deep…

图像与视频处理 · 电气工程与系统科学 2020-08-19 Pingjun Chen , Xiao Chen , Eric Z. Chen , Hanchao Yu , Terrence Chen , Shanhui Sun

Real-time cone-beam computed tomography (CBCT) provides instantaneous visualization of patient anatomy for image guidance, motion tracking, and online treatment adaptation in radiotherapy. While many real-time imaging and motion tracking…

医学物理 · 物理学 2024-09-27 Hua-Chieh Shao , Tielige Mengke , Tinsu Pan , You Zhang

Accelerating Magnetic Resonance Imaging (MRI) by taking fewer measurements has the potential to reduce medical costs, minimize stress to patients and make MRI possible in applications where it is currently prohibitively slow or expensive.…

Background: Real-time (RT) assessment of ventricular volumes and function enables data acquisition during free-breathing. However, in children the requirement for high spatiotemporal resolution requires accelerated imaging techniques. In…

Background: RSN whole-heart CMRA is a technique that estimates and corrects for respiratory motion. However, RSN has been limited to a 1D rigid correction which is often insufficient for patients with complex respiratory patterns. The goal…

图像与视频处理 · 电气工程与系统科学 2020-10-28 Christopher W Roy , John Heerfordt , Davide Piccini , Giulia Rossi , Anna Giulia Pavon , Juerg Schwitter , Matthias Stuber

Extended reality (XR) technologies-encompassing virtual reality (VR), augmented reality (AR), and mixed reality (MR) are transforming cognitive assessment and training by offering immersive, interactive environments that simulate real-world…

人机交互 · 计算机科学 2025-01-15 Palmira Victoria González-Erena , Sara Fernández-Guinea , Panagiotis Kourtesis