Session Wise Estimation of Aortic Pulse Wave Velocity Using Ring Photoplethysmography During Sleep

Multi-Site Photoplethysmography Features Under Heart Rate and Stroke Volume Variations: An In Silico Study

Multi-Wavelength PPG Amplitude Ratio Features for Cuffless Blood Pressure Estimation: An Exploratory Study

Background: Cuffless blood pressure (BP) estimation from photoplethysmography (PPG) remains challenging. This exploratory study investigated whether curvature-derived waveform features from multiple PPG wavelengths, particularly amplitude ratios, are associated with cuff-based BP readings. Methods: Red, infrared, and g...

Context-Augmented, Session-Calibrated Blood Pressure Tracking from Photoplethysmography

Objective.To distinguish the contributions of acquisition context and photoplethysmography (PPG) to session-calibrated blood pressure (BP) tracking.Approach. The original comparison used three repeats of five-fold participant-level cross-validation in 653 AuroraBP participants, excluding calibration-labelled prediction...

Demographic subgroup-aware analysis of blood pressure predictive models

Blood pressure (BP) is an important cardiovascular health indicator, usually monitored non-invasively with a sphygmomanometer, which can be bulky and inconvenient for real-time monitoring. Blood pressure estimation using photoplethysmography (PPG) waveform analysis offers a promising alternative for intermittent or con...

Cuffless Blood Pressure Estimation Using Finger-to-Toe Differential Pulse Transit Time and Random Forest Regression

Exploratory data analysis of tonometry and PTT/PIR signals for cuffless blood pressure monitoring: dynamic responsiveness versus baseline stability

Objective. Sensing modalities for cuffless blood pressure (BP) monitoring remain insufficiently characterized. To address this, we used exploratory data analysis (EDA) to evaluate multimodal physiological signals’ associations with reference BP, to gain insight into their BP-related information and characteristics. App...