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In this paper, we propose a novel contrastive learning based deep learning framework for patient similarity search using physiological signals. We use a contrastive learning based approach to learn similar embeddings of patients with…

信号处理 · 电气工程与系统科学 2023-08-07 Subangkar Karmaker Shanto , Shoumik Saha , Atif Hasan Rahman , Mohammad Mehedy Masud , Mohammed Eunus Ali

We present a convolutional-recurrent neural network architecture with long short-term memory for real-time processing and classification of digital sensor data. The network implicitly performs typical signal processing tasks such as…

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…

定量方法 · 定量生物学 2020-02-14 Sajad Mousavi , Fatemeh Afghah , U. Rajendra Acharya

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…

Atrial fibrillation (AF) is the most common arrhythmia, increasing the risk of stroke, heart failure, and other cardiovascular complications. While AF detection algorithms perform well in identifying persistent AF, early-stage progression,…

机器学习 · 计算机科学 2025-08-28 Yongbin Lee , Ki H. Chon

Atrial fibrillation (AF) is characterized by irregular electrical impulses originating in the atria, which can lead to severe complications and even death. Due to the intermittent nature of the AF, early and timely monitoring of AF is…

声音 · 计算机科学 2024-08-12 Xuanyu Liu , Haoxian Liu , Jiao Li , Zongqi Yang , Yi Huang , Jin Zhang

Atrial fibrillation (AF) is a leading cause of stroke and mortality, particularly in elderly patients. Wrist-worn photoplethysmography (PPG) enables non-invasive, continuous rhythm monitoring, yet suffers from significant vulnerability to…

机器学习 · 计算机科学 2025-11-04 Yangyang Zhao , Matti Kaisti , Olli Lahdenoja , Tero Koivisto

Cardiovascular diseases are the most common cause of mortality worldwide. Detection of atrial fibrillation (AF) in the asymptomatic stage can help prevent strokes. It also improves clinical decision making through the delivery of suitable…

信号处理 · 电气工程与系统科学 2020-02-14 Faezeh Nejati Hatamian , Nishant Ravikumar , Sulaiman Vesal , Felix P. Kemeth , Matthias Struck , Andreas Maier

Most deep learning models of multiclass arrhythmia classification are tested on fingertip photoplethysmographic (PPG) data, which has higher signal-to-noise ratios compared to smartwatch-derived PPG, and the best reported sensitivity value…

Objective: We propose a non-contact approach for atrial fibrillation (AF) detection from face videos. Methods: Face videos, electrocardiography (ECG), and contact photoplethysmography (PPG) from 100 healthy subjects and 100 AF patients are…

图像与视频处理 · 电气工程与系统科学 2022-08-10 Zhaodong Sun , Juhani Junttila , Mikko Tulppo , Tapio Seppänen , Xiaobai Li

Photoplethysmography (PPG) is a ubiquitous physiological measurement that detects beat-to-beat pulsatile blood volume changes and hence has a potential for monitoring cardiovascular conditions, particularly in ambulatory settings. A PPG…

信号处理 · 电气工程与系统科学 2022-02-01 Cheng Ding , Ran Xiao , Duc Do , David Scott Lee , Shadi Kalantarian , Randall J Lee , Xiao Hu

Atrial Fibrillation (AF) is among one of the most common types of heart arrhythmia afflicting more than 3 million people in the U.S. alone. AF is estimated to be the cause of death of 1 in 4 individuals. Recent advancements in Artificial…

信号处理 · 电气工程与系统科学 2020-11-03 James Belen , Sajad Mousavi , Alireza Shamsoshoara , Fatemeh Afghah

Atrial fibrillation (AF) is the most prevalent heart arrhythmia. AF manifests on the electrocardiogram (ECG) though irregular beat-to-beat time interval variation, the absence of P-wave and the presence of fibrillatory waves (f-wave). We…

信号处理 · 电气工程与系统科学 2022-08-23 Noam Ben-Moshe , Shany Biton , Joachim A. Behar

Atrial fibrillation (AF), a common cardiac arrhythmia, significantly increases the risk of stroke, heart disease, and mortality. Photoplethysmography (PPG) offers a promising solution for continuous AF monitoring, due to its cost efficiency…

信号处理 · 电气工程与系统科学 2024-04-25 Runze Yan , Cheng Ding , Ran Xiao , Aleksandr Fedorov , Randall J Lee , Fadi Nahab , Xiao Hu

Atrial fibrillation is a cardiac arrhythmia that affects an estimated 33.5 million people globally and is the potential cause of 1 in 3 strokes in people over the age of 60. Detection and diagnosis of atrial fibrillation (AFIB) is done…

机器学习 · 计算机科学 2019-03-29 Sara Ross-Howe , H. R. Tizhoosh

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…

信号处理 · 电气工程与系统科学 2024-10-03 Jun Lei , Yuxi Zhou , Xue Tian , Qinghao Zhao , Qi Zhang , Shijia Geng , Qingbo Wu , Shenda Hong

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…

Atrial fibrillation (AF) is a prevalent cardiac arrhythmia associated with elevated health risks, where timely detection is pivotal for mitigating stroke-related morbidity. This study introduces an innovative hybrid methodology integrating…

机器学习 · 计算机科学 2025-10-08 Alireza Jafari , Fereshteh Yousefirizi , Vahid Seydi

Atrial Fibrillation (AF) is the most common type of arrhythmia (Greek a-, loss + rhythmos, rhythm = loss of rhythm) leading to hospitalization in the United States. Though sometimes AF is asymptomatic, it increases the risk of stroke and…

机器学习 · 计算机科学 2021-09-22 Samayan Bhattacharya , Sk Shahnawaz

Photoplethysmography (PPG) is a cost-effective and non-invasive technique that utilizes optical methods to measure cardiac physiology. PPG has become increasingly popular in health monitoring and is used in various commercial and clinical…

机器学习 · 计算机科学 2024-06-13 Khuong Vo , Mostafa El-Khamy , Yoojin Choi