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Cardiac pulsation is a physiological confound of functional magnetic resonance imaging (fMRI) time-series that introduces spurious signal fluctuations in proximity to blood vessels. fMRI alone is not sufficiently fast to resolve cardiac…

The pancreatic disease taxonomy includes ten types of masses (tumors or cysts)[20,8]. Previous work focuses on developing segmentation or classification methods only for certain mass types. Differential diagnosis of all mass types is…

图像与视频处理 · 电气工程与系统科学 2020-12-10 Tianyi Zhao , Kai Cao , Jiawen Yao , Isabella Nogues , Le Lu , Lingyun Huang , Jing Xiao , Zhaozheng Yin , Ling Zhang

We propose a method based on deep learning to perform cardiac segmentation on short axis MRI image stacks iteratively from the top slice (around the base) to the bottom slice (around the apex). At each iteration, a novel variant of U-net is…

计算机视觉与模式识别 · 计算机科学 2018-04-26 Qiao Zheng , Hervé Delingette , Nicolas Duchateau , Nicholas Ayache

Cardiac magnetic resonance imaging (CMR) has emerged as a valuable diagnostic tool for cardiac diseases. However, a limitation of CMR is its slow imaging speed, which causes patient discomfort and introduces artifacts in the images. There…

Robust automated organ segmentation is a prerequisite for computer-aided diagnosis (CAD), quantitative imaging analysis and surgical assistance. For high-variability organs such as the pancreas, previous approaches report undesirably low…

计算机视觉与模式识别 · 计算机科学 2016-03-08 Amal Farag , Le Lu , Holger R. Roth , Jiamin Liu , Evrim Turkbey , Ronald M. Summers

Accurate myocardium segmentation across all phases in one cardiac cycle in cine cardiac magnetic resonance (CMR) scans is crucial for comprehensively cardiac function analysis. Despite advancements in deep learning (DL) for automatic cine…

图像与视频处理 · 电气工程与系统科学 2024-07-17 Zhennong Chen , Sekeun Kim , Hui Ren , Quanzheng Li , Xiang Li

We present a rectangle-based segmentation algorithm that sets up a graph and performs a graph cut to separate an object from the background. However, graph-based algorithms distribute the graph's nodes uniformly and equidistantly on the…

计算机视觉与模式识别 · 计算机科学 2012-03-14 Jan Egger , Tina Kapur , Thomas Dukatz , Malgorzata Kolodziej , Dzenan Zukic , Bernd Freisleben , Christopher Nimsky

Many studies regarding the vasculature of biological tissues involve the segmentation of the blood vessels in a sample followed by the creation of a graph structure to model the vasculature. The graph is then used to extract relevant…

计算机视觉与模式识别 · 计算机科学 2024-06-21 João Pedro Parella , Matheus Viana da Silva , Cesar Henrique Comin

In this work, we implement a fully convolutional segmenter featuring both a learned group structure and a regularized weight-pruner to reduce the high computational cost in volumetric image segmentation. We validated our framework on the…

图像与视频处理 · 电气工程与系统科学 2020-04-24 S. M. Kamrul Hasan , Cristian A. Linte

In many real-world applications such as social network analysis, knowledge graph discovery, biological network analytics, and so on, graph data management has become increasingly important and has drawn much attention from the database…

数据库 · 计算机科学 2025-10-10 Yutong Ye , Xiang Lian , Nan Zhang , Mingsong Chen

One of the first steps in the diagnosis of most cardiac diseases, such as pulmonary hypertension, coronary heart disease is the segmentation of ventricles from cardiac magnetic resonance (MRI) images. Manual segmentation of the right…

图像与视频处理 · 电气工程与系统科学 2019-08-22 Yaman Dang , Deepak Anand , Amit Sethi

Current cardiac cine magnetic resonance image (cMR) studies focus on the end diastole (ED) and end systole (ES) phases, while ignoring the abundant temporal information in the whole image sequence. This is because whole sequence…

计算机视觉与模式识别 · 计算机科学 2024-11-04 Meng Ye , Bingyu Xin , Leon Axel , Dimitris Metaxas

Echocardiography has become routinely used in the diagnosis of cardiomyopathy and abnormal cardiac blood flow. However, manually measuring myocardial motion and cardiac blood flow from echocardiogram is time-consuming and error-prone.…

计算机视觉与模式识别 · 计算机科学 2019-06-19 Wentao Zhu , Yufang Huang , Mani A Vannan , Shizhen Liu , Daguang Xu , Wei Fan , Zhen Qian , Xiaohui Xie

Segmentation of cardiac anatomical structures in cardiac magnetic resonance images (CMRI) is a prerequisite for automatic diagnosis and prognosis of cardiovascular diseases. To increase robustness and performance of segmentation methods…

图像与视频处理 · 电气工程与系统科学 2020-11-16 Jörg Sander , Bob D. de Vos , Ivana Išgum

Purpose: Interpreting chest radiographs (CXR) remains challenging due to the ambiguity of overlapping structures such as the lungs, heart, and bones. To address this issue, we propose a novel method for extracting fine-grained anatomical…

图像与视频处理 · 电气工程与系统科学 2023-06-08 Constantin Seibold , Alexander Jaus , Matthias A. Fink , Moon Kim , Simon Reiß , Ken Herrmann , Jens Kleesiek , Rainer Stiefelhagen

Automated segmentation of the left ventricular endocardium in echocardiography videos is a key research area in cardiology. It aims to provide accurate assessment of cardiac structure and function through Ejection Fraction (EF) estimation.…

计算机视觉与模式识别 · 计算机科学 2025-08-27 Dongfang Wang , Jian Yang , Yizhe Zhang , Tao Zhou

Cardiac MRI segmentation plays a crucial role in clinical diagnosis for evaluating personalized cardiac performance parameters. Due to the indistinct boundaries and heterogeneous intensity distributions in the cardiac MRI, most existing…

计算机视觉与模式识别 · 计算机科学 2020-07-23 Feng Cheng , Cheng Chen , Yukang Wang , Heshui Shi , Yukun Cao , Dandan Tu , Changzheng Zhang , Yongchao Xu

Deep learning (DL)-based methods have achieved state-of-the-art performance for many medical image segmentation tasks. Nevertheless, recent studies show that deep neural networks (DNNs) can be miscalibrated and overconfident, leading to…

图像与视频处理 · 电气工程与系统科学 2024-06-28 Yidong Zhao , Joao Tourais , Iain Pierce , Christian Nitsche , Thomas A. Treibel , Sebastian Weingärtner , Artur M. Schweidtmann , Qian Tao

This study introduces a pioneering Dynamic Hypergraph Networks (DHCE) model designed to predict future medical diagnoses from electronic health records with enhanced accuracy. The DHCE model innovates by identifying and differentiating…

机器学习 · 计算机科学 2025-01-07 Wangying Yang , Zitao Zheng , Zhizhong Wu , Bo Zhang , Yuanfang Yang

Automatic evaluation of myocardium and pathology plays an important role in the quantitative analysis of patients suffering from myocardial infarction. In this paper, we present a cascaded convolutional neural network framework for…

图像与视频处理 · 电气工程与系统科学 2021-01-01 Jun Ma