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Deep learning models for atrial fibrillation (AF) detection are increasingly trained on heterogeneous electrocardiogram (ECG) datasets with varying sampling frequencies, yet the specific consequences of these discrepancies on model…

Cardiac segmentation from late gadolinium enhancement MRI is an important task in clinics to identify and evaluate the infarction of myocardium. The automatic segmentation is however still challenging, due to the heterogeneous intensity…

Image and Video Processing · Electrical Eng. & Systems 2019-06-26 Qian Yue , Xinzhe Luo , Qing Ye , Lingchao Xu , Xiahai Zhuang

The automatic detection of atrial fibrillation based on electrocardiograph (ECG) signals has received wide attention both clinically and practically. It is challenging to process ECG signals with cyclical pattern, varying length and…

Machine Learning · Computer Science 2023-02-10 Yifan Sun , Jingyan Shen , Yunfan Jiang , Zhaohui Huang , Minsheng Hao , Xuegong Zhang

Segmentation of the left atrial (LA) wall and endocardium from late gadolinium-enhanced (LGE) MRI is essential for quantifying atrial fibrosis in patients with atrial fibrillation. The development of accurate machine learning-based…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Yusri Al-Sanaani , Rebecca Thornhill , Sreeraman Rajan

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…

Machine Learning · Computer Science 2024-01-19 Tian Xie

Atrial fibrillation (AFib) is the prominent cardiac arrhythmia in the world. It affects mostly the elderly population, with potential consequences such as stroke and heart failure in the absence of necessary treatments as soon as possible.…

Image and Video Processing · Electrical Eng. & Systems 2025-01-07 Malitha Gunawardhana , Anuradha Kulathilaka , Jichao Zhao

Cardiovascular diseases are a pervasive global health concern, contributing significantly to morbidity and mortality rates worldwide. Among these conditions, arrhythmia, characterized by irregular heart rhythms, presents formidable…

Signal Processing · Electrical Eng. & Systems 2024-04-25 Bhavith Chandra Challagundla

Atrial fibrillation (AF) is the most common cardiac arrhythmia, which is clinically identified with irregular and rapid heartbeat rhythm. AF puts a patient at risk of forming blood clots, which can eventually lead to heart failure, stroke,…

Signal Processing · Electrical Eng. & Systems 2023-06-28 Jianxin Xie , Stavros Stavrakis , Bing Yao

Left ventricle segmentation and morphological assessment are essential for improving diagnosis and our understanding of cardiomyopathy, which in turn is imperative for reducing risk of myocardial infarctions in patients. Convolutional…

Image and Video Processing · Electrical Eng. & Systems 2020-02-14 Sulaiman Vesal , Nishant Ravikumar , Andreas Maier

Myocardial Velocity Mapping Cardiac MR (MVM-CMR) can be used to measure global and regional myocardial velocities with proved reproducibility. Accurate left ventricle delineation is a prerequisite for robust and reproducible myocardial…

Image and Video Processing · Electrical Eng. & Systems 2021-04-28 Mengmeng Kuang , Yinzhe Wu , Diego Alonso-Álvarez , David Firmin , Jennifer Keegan , Peter Gatehouse , Guang Yang

Atrial fibrillation is one of the most frequent cardiac arrhythmias in the industrialized world and ablation therapy is the method of choice for many patients. However, ablation scars alter the electrophysiological activation and the…

Biological Physics · Physics 2022-04-21 Tobias Gerach , Steffen Schuler , Andreas Wachter , Axel Loewe

Cardiac magnetic resonance imaging improves on diagnosis of cardiovascular diseases by providing images at high spatiotemporal resolution. Manual evaluation of these time-series, however, is expensive and prone to biased and…

Computer Vision and Pattern Recognition · Computer Science 2018-04-06 Fabian Isensee , Paul Jaeger , Peter M. Full , Ivo Wolf , Sandy Engelhardt , Klaus H. Maier-Hein

Segmentation of the left atrium (LA) is crucial for assessing its anatomy in both pre-operative atrial fibrillation (AF) ablation planning and post-operative follow-up studies. In this paper, we present a fully automated framework for left…

Computer Vision and Pattern Recognition · Computer Science 2019-02-28 Chen Chen , Wenjia Bai , Daniel Rueckert

The complexity of the patterns associated with Atrial Fibrillation (AF) and the high level of noise affecting these patterns have significantly limited the current signal processing and shallow machine learning approaches to get accurate AF…

Quantitative Methods · Quantitative Biology 2019-02-18 Sajad Mousavi , Fatemeh Afghah , Abolfazl Razi , U. Rajendra Acharya

Atrial fibrillation (AF) is one of the most prevalent cardiac arrhythmias that affects the lives of more than 3 million people in the U.S. and over 33 million people around the world and is associated with a five-fold increased risk of…

Quantitative Methods · Quantitative Biology 2020-02-14 Sajad Mousavi , Fatemeh Afghah , U. Rajendra Acharya

Objectives: Atrial fibrillation (AF) is a common heart rhythm disorder associated with deadly and debilitating consequences including heart failure, stroke, poor mental health, reduced quality of life and death. Having an automatic system…

Signal Processing · Electrical Eng. & Systems 2018-01-31 Philip Warrick , Masun Nabhan Homsi

Cardiac magnetic resonance (CMR) images play a growing role in the diagnostic imaging of cardiovascular diseases. Full coverage of the left ventricle (LV), from base to apex, is a basic criterion for CMR image quality and necessary for…

Computer Vision and Pattern Recognition · Computer Science 2018-11-09 Le Zhang , Ali Gooya , Marco Pereanez , Bo Dong , Stefan K. Piechnik , Stefan Neubauer , Steffen E. Petersen , Alejandro F. Frangi

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…

Computer Vision and Pattern Recognition · Computer Science 2018-10-23 Wenjun Yan , Yuanyuan Wang , Zeju Li , Rob J. van der Geest , Qian Tao

Patients with atrial fibrillation have a 5-7 fold increased risk of having an ischemic stroke. In these cases, the most common site of thrombus localization is inside the left atrial appendage (LAA) and studies have shown a correlation…

Computer Vision and Pattern Recognition · Computer Science 2024-02-13 Kristine Aavild Juhl , Jakob Slipsager , Ole de Backer , Klaus Kofoed , Oscar Camara , Rasmus Paulsen

The functional analysis of the left atrium (LA) is important for evaluating cardiac health and understanding diseases like atrial fibrillation. Cine MRI is ideally placed for the detailed 3D characterization of LA motion and deformation but…

Computer Vision and Pattern Recognition · Computer Science 2024-09-19 Christoforos Galazis , Samuel Shepperd , Emma Brouwer , Sandro Queirós , Ebraham Alskaf , Mustafa Anjari , Amedeo Chiribiri , Jack Lee , Anil A. Bharath , Marta Varela