Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.11861/8276
Title: Towards personalized healthcare in cardiac population: The development of a wearable ECG monitoring system, an ECG lossy compression schema, and a ResNet-Based AF detector
Authors: Yi, Wei-Ying 
Liu, Peng-Fei 
Lo, Sheung-Lai 
Chan, Ya-Fen 
Zhou, Yu 
Leung, Yee 
Woo, Kam-Sang 
Lee, Alex Pui-Wai 
Chen, Jia-Min 
Prof. LEUNG Kwong Sak 
Issue Date: 2022
Source: arXiv, 2022, article no. arXiv:2207.05138.
Journal: arXiv 
Abstract: Cardiovascular diseases (CVDs) are the number one cause of death worldwide. While there is growing evidence that the atrial fibrillation (AF) has strong associations with various CVDs, this heart arrhythmia is usually diagnosed using electrocardiography (ECG) which is a risk-free, non-intrusive, and cost-efficient tool. Continuously and remotely monitoring the subjects' ECG information unlocks the potentials of prompt pre-diagnosis and timely pre-treatment of AF before the development of any life-threatening conditions/diseases. Ultimately, the CVDs associated mortality could be reduced. In this manuscript, the design and implementation of a personalized healthcare system embodying a wearable ECG device, a mobile application, and a back-end server are presented. This system continuously monitors the users' ECG information to provide personalized health warnings/feedbacks. The users are able to communicate with their paired health advisors through this system for remote diagnoses, interventions, etc. The implemented wearable ECG devices have been evaluated and showed excellent intra-consistency (CVRMS=5.5%), acceptable inter-consistency (CVRMS=12.1%), and negligible RR-interval errors (ARE<1.4%). To boost the battery life of the wearable devices, a lossy compression schema utilizing the quasi-periodic feature of ECG signals to achieve compression was proposed. Compared to the recognized schemata, it outperformed the others in terms of compression efficiency and distortion, and achieved at least 2x of CR at a certain PRD or RMSE for ECG signals from the MIT-BIH database. To enable automated AF diagnosis/screening in the proposed system, a ResNet-based AF detector was developed. For the ECG records from the 2017 PhysioNet CinC challenge, this AF detector obtained an average testing F1=85.10% and a best testing F1=87.31%, outperforming the state-of-the-art.
Type: Peer Reviewed Journal Article
URI: http://hdl.handle.net/20.500.11861/8276
ISSN: 2331-8422
DOI: https://doi.org/10.48550/arXiv.2207.05138
Appears in Collections:Applied Data Science - Publication

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