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Atrial fibrillation (AF) is a common cardiac arrhythmia characterized by rapid and irregular contractions of the atria. It significantly elevates the risk of strokes due to slowed blood flow in the atria, especially in the left atrial…

机器学习 · 计算机科学 2024-01-19 Tian Xie

Segmentation of the left atrium and deriving its size can help to predict and detect various cardiovascular conditions. Automation of this process in 3D Ultrasound image data is desirable, since manual delineations are time-consuming,…

计算机视觉与模式识别 · 计算机科学 2019-04-19 Markus A. Degel , Nassir Navab , Shadi Albarqouni

Late gadolinium enhancement (LGE) cardiac magnetic resonance (CMR) imaging is considered the in vivo reference standard for assessing infarct size (IS) and microvascular obstruction (MVO) in ST-elevation myocardial infarction (STEMI)…

图像与视频处理 · 电气工程与系统科学 2025-05-15 Matthias Schwab , Mathias Pamminger , Christian Kremser , Daniel Obmann , Markus Haltmeier , Agnes Mayr

This study proposes a fully automated approach for the left atrial segmentation from routine cine long-axis cardiac magnetic resonance image sequences using deep convolutional neural networks and Bayesian filtering. The proposed approach…

计算机视觉与模式识别 · 计算机科学 2020-11-30 Xiaoran Zhang , Michelle Noga , David Glynn Martin , Kumaradevan Punithakumar

Medical image segmentation is one of the important tasks of computer-aided diagnosis in medical image analysis. Since most medical images have the characteristics of blurred boundaries and uneven intensity distribution, through existing…

计算机视觉与模式识别 · 计算机科学 2021-06-09 Sixing Yin , Yameng Han , Shufang Li

Adaptive radiotherapy (ART), especially online ART, effectively accounts for positioning errors and anatomical changes. One key component of online ART is accurately and efficiently delineating organs at risk (OARs) and targets on online…

Fully automatic cardiac segmentation can be a fast and reproducible method to extract clinical measurements from an echocardiography examination. The U-Net architecture is the current state-of-the-art deep learning architecture for medical…

图像与视频处理 · 电气工程与系统科学 2024-10-28 Gilles Van De Vyver , Sarina Thomas , Guy Ben-Yosef , Sindre Hellum Olaisen , Håvard Dalen , Lasse Løvstakken , Erik Smistad

Automatic labelling of anatomical structures, such as coronary arteries, is critical for diagnosis, yet existing (non-deep learning) methods are limited by a reliance on prior topological knowledge of the expected tree-like structures. As…

图像与视频处理 · 电气工程与系统科学 2024-03-05 Yadan Li , Mohammad Ali Armin , Simon Denman , David Ahmedt-Aristizabal

Automatic segmentation of organs-at-risk (OARs) in CT scans using convolutional neural networks (CNNs) is being introduced into the radiotherapy workflow. However, these segmentations still require manual editing and approval by clinicians…

计算机视觉与模式识别 · 计算机科学 2022-06-28 Edward G. A. Henderson , Andrew F. Green , Marcel van Herk , Eliana M. Vasquez Osorio

Magnetic resonance imaging is a fundamental tool to reach a diagnosis of multiple sclerosis and monitoring its progression. Although several attempts have been made to segment multiple sclerosis lesions using artificial intelligence, fully…

Accurate segmentation of the heart is an important step towards evaluating cardiac function. In this paper, we present a fully automated framework for segmentation of the left (LV) and right (RV) ventricular cavities and the myocardium…

计算机视觉与模式识别 · 计算机科学 2017-10-11 Christian F. Baumgartner , Lisa M. Koch , Marc Pollefeys , Ender Konukoglu

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

In this paper, we propose a fully automatic MRI cardiac segmentation method based on a novel deep convolutional neural network (CNN) designed for the 2017 ACDC MICCAI challenge. The novelty of our network comes with its embedded shape prior…

计算机视觉与模式识别 · 计算机科学 2017-09-14 Clement Zotti , Zhiming Luo , Alain Lalande , Olivier Humbert , Pierre-Marc Jodoin

The morphological structure of left ventricle segmented from cardiac magnetic resonance images can be used to calculate key clinical parameters, and it is of great significance to the accurate and efficient diagnosis of cardiovascular…

计算机视觉与模式识别 · 计算机科学 2018-09-28 Han Kang , Defeng Chen

Background: The aim of this study was to develop and evaluate a deep learning-based automated segmentation method for hepatic anatomy (i.e., parenchyma, tumors, portal vein, hepatic vein and biliary tree) from the hepatobiliary phase of…

Atrial fibrillation (AF) is a common cardiac arrhythmia and a major risk factor for ischemic stroke. Early detection of AF using non-invasive signals can enable timely intervention. In this work, we present a comprehensive machine learning…

计算机与社会 · 计算机科学 2026-02-23 Ankit Singh , Vidhi Thakur , Nachiket Tapas

Deep convolutional neural networks (CNNs) are state-of-the-art for semantic image segmentation, but typically require many labeled training samples. Obtaining 3D segmentations of medical images for supervised training is difficult and labor…

计算机视觉与模式识别 · 计算机科学 2019-07-29 Zhenlin Xu , Marc Niethammer

This paper presents a novel machine learning framework for detecting Paroxysmal Atrial Fibrillation (PxAF), a pathological characteristic of Electrocardiogram (ECG) that can lead to fatal conditions such as heart attack. To enhance the…

机器学习 · 计算机科学 2023-01-25 Mehdi Asadi , Fatemeh Poursalim , Mohammad Loni , Masoud Daneshtalab , Mikael Sjödin , Arash Gharehbaghi

Physiological signals, such as the electrocardiogram and the phonocardiogram are very often corrupted by noisy sources. Usually, artificial intelligent algorithms analyze the signal regardless of its quality. On the other hand, physicians…

信号处理 · 电气工程与系统科学 2023-04-25 Jorge Oliveira , Margarida Carvalho , Diogo Marcelo Nogueira , Miguel Coimbra

Atrial Fibrillation (AF) is characterized by rapid, irregular heartbeats, and can lead to fatal complications such as heart failure. The disease is divided into two sub-types based on severity, which can be automatically classified through…

计算机视觉与模式识别 · 计算机科学 2023-08-15 Weihang Dai , Xiaomeng Li , Taihui Yu , Di Zhao , Jun Shen , Kwang-Ting Cheng