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False Alarm Reduction in BSN-Based Cardiac Monitoring Using Signal Quality and Activity Type Information
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Document Title
False Alarm Reduction in BSN-Based Cardiac Monitoring Using Signal Quality and Activity Type Information
Author
Tanantong T, Nantajeewarawat E, Thiemjarus S
Name from Authors Collection
Affiliations
Thammasat University; National Science & Technology Development Agency - Thailand; National Electronics & Computer Technology Center (NECTEC)
Type
Article
Source Title
SENSORS
Year
2015
Volume
15
Open Access
Green Published, Green Submitted, gold
Publisher
MDPI
DOI
10.3390/s150203952
Format
Abstract
False alarms in cardiac monitoring affect the quality of medical care, impacting on both patients and healthcare providers. In continuous cardiac monitoring using wireless Body Sensor Networks (BSNs), the quality of ECG signals can be deteriorated owing to several factors, e.g., noises, low battery power, and network transmission problems, often resulting in high false alarm rates. In addition, body movements occurring from activities of daily living (ADLs) can also create false alarms. This paper presents a two-phase framework for false arrhythmia alarm reduction in continuous cardiac monitoring, using signals from an ECG sensor and a 3D accelerometer. In the first phase, classification models constructed using machine learning algorithms are used for labeling input signals. ECG signals are labeled with heartbeat types and signal quality levels, while 3D acceleration signals are labeled with ADL types. In the second phase, a rule-based expert system is used for combining classification results in order to determine whether arrhythmia alarms should be accepted or suppressed. The proposed framework was validated on datasets acquired using BSNs and the MIT-BIH arrhythmia database. For the BSN dataset, acceleration and ECG signals were collected from 10 young and 10 elderly subjects while they were performing ADLs. The framework reduced the false alarm rate from 9.58% to 1.43% in our experimental study, showing that it can potentially assist physicians in diagnosing a vast amount of data acquired from wireless sensors and enhance the performance of continuous cardiac monitoring.
Funding Sponsor
Thailand Research Fund (TRF), under Royal Golden Jubilee Ph.D. Program [PHD/0225/2551]; National Research University Project of Thailand Office of Higher Education Commission; Center of Excellence in Intelligent Informatics, Speech and Language Technology and Service Innovation (CILS), Thammasat University; Anandamahidol Foundation
License
CC-BY
Rights
Authors
Publication Source
WOS