Pulse Arrival Time–Based Blood Pressure Estimation in ICU Waveforms from the MIMIC-BP Database

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

Validation study on cuffless ambulatory blood pressure monitoring method using bio-impedance, impedance cardiography and electrocardiography.

PURPOSE Continuous, non-invasive blood pressure (BP) monitoring is essential for understanding cardiovascular dynamics in real-world settings. This study evaluated the reliability and validity of a cuffless method for ambulatory BP monitoring using pulse wave travel times derived from bio-impedance, impedance cardiogra...

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. AP...

A Physiology-Based Ambulatory Arterial Stiffness Index Derived from the Arterial Time Constant

Carotid-femoral pulse wave velocity (cfPWV) is the reference standard for the non-invasive assessment of arterial stiffness but requires dedicated vascular equipment and is not routinely available in clinical practice. Previous studies have shown that arterial stiffness can be estimated from 24-hour ambulatory blood pr...

A Physiology- and Measurement-Informed Framework for Evaluating PPG Features in Cuffless Blood Pressure Estimation.

Continuous and cuffless blood pressure (BP) estimation using photoplethysmography (PPG) has considerable potential for wearable health monitoring. However, PPG records peripheral optical blood-volume-related changes rather than arterial pressure directly, and its waveform is jointly shaped by systemic hemodynamics, loc...

Real-Time SpO2 Estimation from Chest Reflectance Photoplethysmography: Algorithm Development and Clinical Validation Against Arterial SaO2

A real-time SpO2 estimation algorithm based on chest reflectance PPG that supports the technical feasibility of chest reflectance PPG-based SpO2 estimation and its accuracy under controlled desaturation conditions is developed and clinically evaluated.