A Real-Time Continuous Cardiac Arrhythmias Detection System: RECAD

Area of Science:

• Biomedical Engineering
• Cardiology
• Health Informatics

Background:

• Cardiac arrhythmia poses significant health risks, with current diagnostic methods facing limitations in temporal and spatial application.
• Existing diagnostic tools for cardiac arrhythmias often restrict patients' mobility and daily activities.

Purpose of the Study:

• To introduce a real-time continuous arrhythmias detection system (RECAD) platform.
• To enable long-term, real-time cardiac monitoring through wireless sensor network technology.
• To enhance patient mobility and quality of life during continuous ECG surveillance.

Main Methods:

• Development of the RECAD platform, comprising ambulatory wireless ECG sensors (AWES), local access server, remote access server, and remote surveillance server.
• Implementation of a lossless signal compression algorithm to minimize network traffic.
• Utilization of a dedicated application layer protocol for real-time, reliable on-line ECG analysis.
• Configurable subsystems to adapt to various application scenarios.

Main Results:

• The RECAD platform demonstrated effective long-term, real-time cardiac arrhythmia surveillance.
• Ambulatory wireless ECG sensors (AWES) are compact, low-power, and allow patients to maintain normal daily routines.
• Real-time performance evaluation on twenty patients showed results comparable to the established HP telemetry system.
• Lossless compression and a dedicated protocol ensured efficient and reliable on-line ECG data analysis.

Conclusions:

• The RECAD platform offers a viable solution for continuous, real-time cardiac arrhythmia detection.
• Wireless sensor technology, exemplified by AWES, significantly improves patient comfort and mobility during monitoring.
• The system's comparable performance to existing telemetry systems validates its effectiveness in clinical settings.