An effective ECG signal compression algorithm with self controlled reconstruction quality.

Electrocardiogram (ECG) signals are frequently used in the continuous monitoring of heart patients. These recordings generate huge data, which is difficult to store or transmit in telehealth applications. In the above context, this work proposes an efficient novel compression algorithm by integrating the tunable-Q wavelet transform (TQWT) with coronavirus herd immunity optimizer (CHIO). Additionally, this algorithm facilitates the self-adaptive nature to regulate the reconstruction quality by limiting the error parameter. CHIO is a human perception-based algorithm, used to select optimum TQWT parameters, where decomposition level of TQWT is optimized for the first time in the field of ECG compression. The obtained transform coefficients are then thresholded, quantized, and encoded to improve the compression further. The proposed work is tested on MIT-BIH arrhythmia database. The compression and optimization performance using CHIO is also compared with well-established optimization algorithms. The compression performance is measured in terms of compression ratio, signal-to-noise ratio, percent root mean square difference, quality score, and correlation coefficient.

A cohort data-based perspective on ecological aspects predicaments in human health

The ecological aspects such as environmental factors, socioeconomic constraints and demographic parameters are one of the key aspects to examine the health benefits of human subject and used as ready reference in eco system modeling. Presently, there are various kinds of deadly diseases and disorders who are liable for affecting the human health and impacting the eco framework of whole world. The virus such as Corona, Swine Flu, omicron and others are one of the best examples for the research community to understand the vulnerability of human health in relation to these unpredictable causes. As per report of world health organization every year, more than 10 million people are affected by such ecological and environmental disbalance. The burden of ecological aspects apparently affecting the working of various organs in human subject. There is a need to understand this ecological model in relation to health of human subjects. In this study, a cohort-based data set of ecological pollutants and physiological signals such as ECG and anthropogenic data of human subjects were extracted from Maharashtra from 2015 to 2021. As per neural network-based hazard ratio was calculated and observed to be deplorable among unhealthy and health categories of human subjects. It has been concluded that the accumulative eco system is responsible for overburden to organs of living beings and policy makers must focus on the facts of study for modern management framework designs. [ FROM AUTHOR]

A Real-Time Remote Monitoring System for Cardiovascular Diseases

Currently, real-time recording and bio-signal-based early diagnosis are feasible solutions thanks to increasing progress in monitoring device development technology, including self-monitoring devices, integrated electronic systems, the Internet of Things, and edge computing. The pandemic emergency of coronavirus disease 2019 (COVID-19) activated the remote monitoring era and highlighted the need for innovative digital approaches to managing cardiovascular disease. The scientific community and health organizations have considered this new era confirming that remote consultation and monitoring systems have become indispensable in cardiovascular healthcare circumstances to enhance patient healthcare and offer personalized treatment. The paper aims to introduce a real-time remote monitoring system for cardiovascular diseases and to describe the proposed system modules and the ECG signal processing algorithms. The described approach can monitor the patient's cardiac activity, allowing the specialist to control the electronic instruments remotely without leaving their office. Therefore, this system aims at all cardiopathic patients with objective motor difficulties either because they are bedridden or geographically located in places distant from the health facility of interest. Furthermore, considering the real-time monitoring approach of this system, a future application scenario in a global pandemic context can be hypothesized. © 2022 Seventh Sense Research Group®

ECG- Based Emotion Detection via Parallel- Extraction of Temporal and Spatial Features Using Convolutional Neural Network

Emotion detection from an ECG signal allows the direct assessment of the inner state of a human. Because ECG signals contain nerve endings from the autonomic nervous system that controls the behavior of each emotion. Besides, emotion detection plays a vital role in the daily activities of human life, where we lately witnessed the outbreak of the (COVID-19) pandemic that has a bad influence on the affective states of humans. Therefore, it has become indispensable to build an intelligent system capable of predicting and classifying emotions in their early stages. Accordingly, in this study, the Parallel-Extraction of Temporal and Spatial Features using Convolutional Neural Network (PETSFCNN) is established. So, in-depth features of the ECG signals are extracted and captured from the suggested parallel 2-channel structure of 1-dimensional CNN network and 2-dimensional CNN network and then combined by feature fusion technique for more dependable classification results. Besides, Grid Search Optimized-Deep Neural Network (GSO-DNN) is adopted for higher classification accuracy. To verify the performance of the proposed method, our experiment was implemented on two different datasets. The maximum classification accuracy of 97.56% and 96.34% on both valence and arousal were gained, respectively using the internationally approved DREAMER dataset. While the same model on the private dataset achieved 76.19% for valence and 80.95% for arousal respectively. The classification results of the PETSFCNN-GSO-DNN model are compared with state-of-the-art methods. The empirical findings reveal that the proposed method can detect emotions from ECG signals more accurately and better than state-of-the-art methods and has the potential to be implemented as an intelligent system for affect detection.

Hardware-assisted and Deep-Learning techniques for Low-Power Detection of Cardiovascular Abnormalities in Smart Wearables

The COVID-19 pandemic has significantly reduced visits to hospitals and clinics, forcing physicians and clinics to investigate how to move online using telemedicine and home monitoring. Wearable technologies can help by enabling homecare monitoring if they provide accurate and precise measurements. The monitoring of cardiac health problems is such an example and can be managed when patients are residing at home with the use of wearable cardiac monitoring equipment. Recent studies indicate that of various COVID-19 related complications, cardiac abnormalities in particular are associated with a significantly higher mortality rate. It is therefore important to develop smart wearables that are able to analyze and interpret the recorded signal to detect anomalies outside clinical environments where no external devices are available to analyze and store the signals, nor healthcare personnel is present to assist the identification of abnormal heart activity. This paper looks into two different approaches to enable smart wearables to analyze a high-definition electrocardiogram arriving from ECG sensors arrays in order to detect cardiovascular abnormalities. The first approach relies on techniques that enable the execution of deep-learning models within an embedded processor. The second approach uses heterogeneous multicore embedded processors that accelerate the execution of the classifiers. Results indicate the benefits of each approach and the interplay between the performance achieved in terms of event detection ratio and latency of classification. © 2021 IEEE.

Interpretable AI Model-Based Predictions of ECG changes in COVID-recovered patients

COVID-19 has caused immense social and economic losses throughout the world. Subjects recovered from COVID are learned to have complications. Some studies have shown a change in the heart rate variability (HRV) in COVID-recovered subjects compared to the healthy ones. This change indicates an increased risk of heart problems among the survivors of moderate-to-severe COVID. Hence, this study is aimed at finding HRV features that get altered in COVID-recovered subjects compared to healthy subjects. Data of COVID-recovered and healthy subjects were collected from two hospitals in Delhi, India. Seven ML models have been built to classify healthy versus COVID-recovered subjects. The best-performing model was further analyzed to explore the ranking of altered heart features in COVID-recovered subjects via AI interpretability. Ranking of these features can indicate cardiovascular health status to doctors, who can provide support to the COVID-recovered subjects for timely safeguard from heart disorders. To the best of our knowledge, this is the first study with an in-depth analysis of the heart status of COVID-recovered subjects via ECG analysis. © 2021 IEEE.

Study of the Few-Shot Learning for ECG Classification Based on the PTB-XL Dataset.

The electrocardiogram (ECG) is considered a fundamental of cardiology. The ECG consists of P, QRS, and T waves. Information provided from the signal based on the intervals and amplitudes of these waves is associated with various heart diseases. The first step in isolating the features of an ECG begins with the accurate detection of the R-peaks in the QRS complex. The database was based on the PTB-XL database, and the signals from Lead I-XII were analyzed. This research focuses on determining the Few-Shot Learning (FSL) applicability for ECG signal proximity-based classification. The study was conducted by training Deep Convolutional Neural Networks to recognize 2, 5, and 20 different heart disease classes. The results of the FSL network were compared with the evaluation score of the neural network performing softmax-based classification. The neural network proposed for this task interprets a set of QRS complexes extracted from ECG signals. The FSL network proved to have higher accuracy in classifying healthy/sick patients ranging from 93.2% to 89.2% than the softmax-based classification network, which achieved 90.5-89.2% accuracy. The proposed network also achieved better results in classifying five different disease classes than softmax-based counterparts with an accuracy of 80.2-77.9% as opposed to 77.1% to 75.1%. In addition, the method of R-peaks labeling and QRS complexes extraction has been implemented. This procedure converts a 12-lead signal into a set of R waves by using the detection algorithms and the k-mean algorithm.

Building an AI Model on ECG Data for Identifying Burnout/Stressed Healthcare Workers Involved in Covid-19 Management

An electrocardiogram (ECG) is used to monitor electrical activity of the heart. ECG data with 12 leads can help in detecting various cardiac (heart) problems. One of the significant factors that contribute to various cardiac diseases is work/personal stress. Use of various machine and deep learning approaches to analyse ECG data has yielded promising results in the field of predictive and diagnostic healthcare with less human error or bias. In our study, 10sec of 500Hz, 12-lead ECG samples were collected from the healthcare workers, who were involved directly or indirectly in taking care of COVID-19 patients. The present study was designed to determine whether Healthcare workers were stressed by using only ECG as input to a deep learning model. To the best of our knowledge, no earlier ECG based study has been carried out to identify stressed persons among the healthcare workers who are giving support to COVID-19 patients. In this study, ECG data of healthcare workers giving services to COVID-19 patients is utilized. This data was collected from four tertiary academic care centres of India. A modified version of AlexNet is utilized on this data that is able to identify a stressed healthcare worker with 99.397% accuracy and 99.411% AUC score. Successful deployment of such systems can help governments and hospital administrations make appropriate policy decisions during pandemics. © 2021 IEEE.