Towards Long-term Monitoring of Atrial Fibrillation using Photoplethysmography

摘要

This study investigates the feasibility of long-term monitoring of atrial fibrillation (AF) using wrist-worn device, capable of acquiring photoplethysmogram (PPG) and motion data. Moreover, the performance of AF detectors, initially developed to detect AF in electrocardiogram (ECG) signals, is evaluated on PPG. The study population consisted of 12 patients undergoing cardiac rehabilitation. Based on accelerometer data, 65% of recording time was considered as motion-free, which resulted in 86.8 hours of data with AF and 85.4 hours without. The performance of AF detectors was found to be comparable when both ECG and PPG are used for constructing heart rhythm series. Considering that 2/3 of monitoring time PPG was of satisfactory quality, the wrist-worn device has potential to be applied for long-term mass screening of target population.