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Myocardial infarction (MI) is the leading cause of mortality in the world that occurs due to a blockage of the coronary arteries feeding the myocardium. An early diagnosis of MI and its localization can mitigate the extent of myocardial…

图像与视频处理 · 电气工程与系统科学 2025-01-27 Aysen Degerli , Serkan Kiranyaz , Tahir Hamid , Rashid Mazhar , Moncef Gabbouj

In this work we propose a new method for the rhythm classification of short single-lead ECG records, using a set of high-level and clinically meaningful features provided by the abductive interpretation of the records. These features…

人工智能 · 计算机科学 2021-12-09 Tomás Teijeiro , Constantino A. García , Daniel Castro , Paulo Félix

Arrhythmias are potentially fatal disruptions to the normal heart rhythm, but their underlying dynamics is still poorly understood. Theoretical modeling is an important tool to fill this gap. Typical studies often employ detailed…

组织与器官 · 定量生物学 2022-03-08 R. V. Stenzinger , M. H. R. Tragtenberg

In the time-series analysis, the time series motifs and the order patterns in time series can reveal general temporal patterns and dynamic features. Triadic Motif Field (TMF) is a simple and effective time-series image encoding method based…

机器学习 · 计算机科学 2020-12-10 Yadong Zhang , Xin Chen

Radiofrequency (RF) catheter ablation has transformed treatment for tachyarrhythmias and has become first-line therapy for some tachycardias. The precise localization of the arrhythmogenic site and the positioning of the RF catheter over…

计算机视觉与模式识别 · 计算机科学 2009-10-13 Pascal Fallavollita

Cardiac fibrillation is characterized by chaotic and disintegrated spiral wave dynamics patterns, whereas sinus rhythm shows synchronized excitation patterns. To determine functional correlations among cardiomyocytes during complex…

组织与器官 · 定量生物学 2022-10-20 Euijun Song

Electrocardiogram (ECG) is one of the non-invasive and low-risk methods to monitor the condition of the human heart. Any abnormal pattern(s) in the ECG signal is an indicative measure of malfunctioning of the heart, termed as arrhythmia.…

信号处理 · 电气工程与系统科学 2018-10-10 Sai Manoj Pudukotai Dinakarrao , Matthias Wess

Knowledge of the mechanical properties of the aorta is essential as important concerns regarding the treatment of aortic pathologies, such as atherosclerosis, aneurysms and dissections, are fundamentally mechanobiological. A comprehensive…

医学物理 · 物理学 2019-12-16 Stéphane Avril

This chapter reviews the different methodological aspects of the ab ini-tio modeling of dislocations. Such simulations are now frequently used to study the dislocation core, i.e. the region in the immediate vicinity of the line defect where…

材料科学 · 物理学 2019-01-08 Emmanuel Clouet

Cardiac arrhythmia is a prevalent and significant cause of morbidity and mortality among cardiac ailments. Early diagnosis is crucial in providing intervention for patients suffering from cardiac arrhythmia. Traditionally, diagnosis is…

信号处理 · 电气工程与系统科学 2020-04-14 Sricharan Vijayarangan , Balamurali Murugesan , Vignesh R , Preejith SP , Jayaraj Joseph , Mohansankar Sivaprakasam

Obstructive sleep apnea (OSA) is believed to contribute significantly to atrial fibrillation (AF) development in certain patients. Recent studies indicate a rising risk of AF with increasing OSA severity. However, the commonly used…

The disruption of circadian rhythm is a cardinal symptom for Alzheimer's disease (AD) patients. The full circadian rhythm orchestration of gene expression in the human brain and its inherent associations with AD remain largely unknown. We…

基因组学 · 定量生物学 2022-09-26 Xinxing Wu , Chong Peng , Gregory Jicha , Donna Wilcock , Qiang Cheng

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…

信号处理 · 电气工程与系统科学 2024-04-25 Bhavith Chandra Challagundla

Infarction- or ischaemia-induced cardiac fibrosis can be arrythmogenic. We use mathematcal models for diffuse fibrosis ($\mathcal{DF}$), interstitial fibrosis ($\mathcal{IF}$), patchy fibrosis ($\mathcal{PF}$), and compact fibrosis…

生物物理 · 物理学 2021-05-04 Mahesh Kumar Mulimani , Brodie A. J. Lawson , Rahul Pandit

This paper deals with the mathematical analysis and numerical simulation of a new nonlinear ablation system modeling radiofrequency ablation phenomena in cardiac tissue, {which incorporates the effects of blood flow on the heat generated…

偏微分方程分析 · 数学 2024-09-09 Mostafa Bendahmane , Youssef Ouakrim , Yassine Ouzrour , Mohamed Zagour

We derive an equation that governs the spatiotemporal dynamics of small amplitude alternans in paced cardiac tissue. We show that a pattern-forming linear instability leads to the spontaneous formation of stationary or traveling waves whose…

统计力学 · 物理学 2009-11-07 Blas Echebarria , Alain Karma

Introduction: The presence of fibrillatory waves (f-waves) is important in the diagnosis of atrial fibrillation (AF), which has motivated the development of methods for f-wave extraction. We propose a novel approach to benchmarking methods…

信号处理 · 电气工程与系统科学 2023-07-18 Noam Ben-Moshe , Shany Biton , Kenta Tsutsui , Mahmoud Suleiman , Leif Sörnmo , Joachim A. Behar

Cardiac diseases are among the leading causes of morbidity and mortality worldwide, which requires accurate and timely diagnostic strategies. In this study, we introduce an innovative approach that combines deep learning image registration…

机器学习 · 计算机科学 2025-07-09 Comte Valentin , Gemma Piella , Mario Ceresa , Miguel A. Gonzalez Ballester

During cardiac arrhythmias, dynamical patterns of electrical activation form and evolve, which are of interest to understand and cure heart rhythm disorders. The analysis of these patterns is commonly performed by calculating the local…

适应与自组织系统 · 物理学 2021-09-10 Louise Arno , Jan Quan , Nhan T. Nguyen , Maarten Vanmarcke , Elena G. Tolkacheva , Hans Dierckx

The study of pathological cardiac conditions such as arrhythmias, a major cause of mortality in heart failure, is becoming increasingly informed by computational simulation, numerically modelling the governing equations. This can provide…

计算工程、金融与科学 · 计算机科学 2014-06-09 Nathan Kirk , Alan Benson , Christopher Goodyer , Matthew Hubbard
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