rPPG contactless pulse rate monitoring in cardiovascular disease patients showed strong agreement with ECG, with mean absolute error 1.061 bpm and Pearson correlation 0.962.
Does remote photoplethysmography (rPPG) accurately measure pulse rate compared to ECG in adults with cardiovascular disease?
Contactless remote photoplethysmography (rPPG) accurately measures pulse rate in patients with cardiovascular disease compared to standard ECG, offering a potential tool for unobtrusive remote monitoring.
Absolute Event Rate: 0% vs 0%
Background: Cardiovascular disease (CVD) is the leading cause of mortality worldwide, creating demand for continuous, unobtrusive monitoring solutions. This clinical validation evaluates the accuracy of remote photoplethysmography (rPPG), a contactless method using camera video, for measuring pulse rate (PR) in patients with CVD. Methods: We enrolled 50 adults with confirmed CVD at a clinical trial center. In a 6 min rested session, synchronized facial video (under controlled lighting), electrocardiogram (ECG), and photoplethysmography (PPG) signals were recorded. PR was derived from 25 s video segments using rPPG-enabled software and compared to ECG-derived PR via regression and Bland–Altman analysis. Results: Data from 47 participants (n = 817 samples) were analyzed. rPPG-derived PR showed strong agreement with ECG, with a mean absolute error of 1.061 bpm, root-mean-squared error of 2.845 bpm, and Pearson correlation of 0.962. Mixed-effects regression analyses (after 2% outlier removal, n = 782) indicated minimal influence from demographic, environmental, or CVD factors on accuracy. PPG-ECG discrepancies reflected inherent methodological differences. Conclusion: The rPPG method provides accurate, contactless PR monitoring in CVD patients, supporting its potential for remote patient monitoring and early deterioration detection. Future work will validate rPPG for irregular rhythms, additional vital signs, and diverse cohorts to strengthen clinical robustness for cardiometabolic risk assessment.
Chin et al. (Fri,) reported a other. rPPG contactless pulse rate monitoring in cardiovascular disease patients showed strong agreement with ECG, with mean absolute error 1.061 bpm and Pearson correlation 0.962.