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Atrial Fibrillation (AF) is a common cardiac arrhythmia. Many AF patients experience complications such as stroke and other cardiovascular issues. Early detection of AF is crucial. Existing algorithms can only distinguish ``AF rhythm in AF…

Signal Processing · Electrical Eng. & Systems 2024-10-03 Jun Lei , Yuxi Zhou , Xue Tian , Qinghao Zhao , Qi Zhang , Shijia Geng , Qingbo Wu , Shenda Hong

Atrial fibrillation (AF) is a common cardiac arrhythmia that significantly increases the risk of stroke and heart failure, necessitating reliable and generalizable detection methods from electrocardiogram (ECG) recordings. Although deep…

Quantitative Methods · Quantitative Biology 2026-01-16 Hongtao Li , Jia Wei , Jia Xiao , Yuanjun Lai , Mingyang Liu , Shuzhen Lv , Xueqiang Ouyang

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

Introduction: 12-lead electrocardiogram (ECG) is recorded during atrial fibrillation (AF) catheter ablation procedure (CAP). It is not easy to determine if CAP was successful without a long follow-up assessing for AF recurrence (AFR).…

Machine Learning · Computer Science 2022-08-24 Eran Zvuloni , Sheina Gendelman , Sanghamitra Mohanty , Jason Lewen , Andrea Natale , Joachim A. Behar

We consider the use of a running measure of power spectrum disorder to distinguish between the normal sinus rhythm of the heart and two forms of cardiac arrhythmia: atrial fibrillation and atrial flutter. This spectral entropy measure is…

Quantitative Methods · Quantitative Biology 2009-02-16 Phillip P. A. Staniczenko , Chiu Fan Lee , Nick S. Jones

Although catheter ablation (CA) is still the first-line treatment for persistent atrial fibrillation (AF) patients, its limited long-term success rate has motivated clinical interest in preoperative prediction on the procedures outcome to…

Medical Physics · Physics 2024-01-22 Pilar Escribano , Juan Rodenas , Miguel A Arias , Philip Langley , Jose J Rieta , Raul Alcaraz

While most heart arrhythmias are not immediately harmful, they can lead to severe complications. In particular, atrial fibrillation, the most common arrhythmia, is characterized by fast and irregular heart beats and increases the risk of…

Signal Processing · Electrical Eng. & Systems 2020-07-07 Jérôme Van Zaen , Olivier Chételat , Mathieu Lemay , Enric M. Calvo , Ricard Delgado-Gonzalo

Atrial fibrillation (AF) consequences on the heart valve dynamics are usually studied along with a valvular disfunction or disease, since in medical monitoring the two pathologies are often concomitant. Aim of the present work is to study,…

Fluid Dynamics · Physics 2015-10-27 Stefania Scarsoglio , Carlo Camporeale , Andrea Guala , Luca Ridolfi

We analyze left atrium haemodynamics, highlighting differences among healthy individuals and patients affected by atrial fibrillation. The computational study is based on patient-specific geometries of the left atria to simulate blood flow…

Fluid Dynamics · Physics 2022-10-06 Mattia Corti , Alberto Zingaro , Luca Dede' , Alfio Maria Quarteroni

Heart rate variability (HRV) indices describe properties of interbeat intervals in electrocardiogram (ECG). Usually HRV is measured exclusively in normal sinus rhythm (NSR) excluding any form of paroxysmal rhythm. Atrial fibrillation (AF)…

Applications · Statistics 2023-08-28 Nikita Markov , Ilya Kotov , Konstantin Ushenin , Yakov Bozhko

Hypertrophic cardiomyopathy (HCM) patients have a high incidence of atrial fibrillation (AF) and increased stroke risk, even with low risk of congestive heart failure, hypertension, age, diabetes, previous stroke/transient ischemic attack…

Cardiac diseases are the principal cause of human morbidity and mortality in the western world. The electric potential of the heart is a highly complex signal emerging as a result of nontrivial flow conduction, hierarchical structuring and…

Data Analysis, Statistics and Probability · Physics 2012-04-19 Oriol Pont , Michel Haïssaguerre , Hussein Yahia , Nicolas Derval , Mélèze Hocini

Remote patient monitoring based on wearable single-lead electrocardiogram (ECG) devices has significant potential for enabling the early detection of heart disease, especially in combination with artificial intelligence (AI) approaches for…

Signal Processing · Electrical Eng. & Systems 2024-04-30 Aruna Mohan , Danne Elbers , Or Zilbershot , Fatemeh Afghah , David Vorchheimer

Objective: To develop prognostic survival models for predicting adverse outcomes after catheter ablation treatment for non-valvular atrial fibrillation (AF). Methods: We used a linked dataset including hospital administrative data,…

Machine Learning · Computer Science 2024-02-19 Juan C. Quiroz , David Brieger , Louisa Jorm , Raymond W Sy , Benjumin Hsu , Blanca Gallego

While spiral wave breakup has been implicated in the emergence of atrial fibrillation, its role in maintaining this complex type of cardiac arrhythmia is less clear. We used the Karma model of cardiac excitation to investigate the dynamical…

Tissues and Organs · Quantitative Biology 2017-10-11 Christopher D Marcotte , Roman O Grigoriev

Atrial Fibrillation (AF) is the most prevalent sustained arrhythmia, yet current ablation therapies, including pulmonary vein isolation, are frequently ineffective in persistent AF due to the involvement of non-pulmonary vein drivers. This…

Purpose: Atrial fibrillation (AF) is the most common cardiac arrhythmia and is correlated with increased morbidity and mortality. It is associated with atrial fibrosis, which may be assessed non-invasively using late gadolinium-enhanced…

Computer Vision and Pattern Recognition · Computer Science 2018-07-04 Guang Yang , Xiahai Zhuang , Habib Khan , Shouvik Haldar , Eva Nyktari , Lei Li , Rick Wage , Xujiong Ye , Greg Slabaugh , Raad Mohiaddin , Tom Wong , Jennifer Keegan , David Firmin

Mathematical models of cardiac electrical excitation are increasingly complex, with multiscale models seeking to represent and bridge physiological behaviours across temporal and spatial scales. The increasing complexity of these models…

Tissues and Organs · Quantitative Biology 2016-12-13 Yen Ting Lin , Eugene TY Chang , Julie Eatock , Tobias Galla , Richard H Clayton

Left atrium shape has been shown to be an independent predictor of recurrence after atrial fibrillation (AF) ablation. Shape-based representation is imperative to such an estimation process, where correspondence-based representation offers…

The severity of atrial fibrillation (AF) can be assessed from intra-operative epicardial measurements (high-resolution electrograms), using metrics such as conduction block (CB) and continuous conduction delay and block (cCDCB). These…