Validation of a new device for photoplethysmographic measurement of multi-site arterial pulse wave velocity

Relationship between the Central and Regional Pulse Wave Velocity in the Assessment of Arterial Stiffness Depending on Gender in the Geriatric Population

“…In addition, localization of the SphygmoCor XCEL sensors (tonometer and cuff on right body site) is shown in the block diagram. Multi-site regional PWV measurement with the MPPT device was described in detail in our previous work [22]. The MPPT device synchronously measures several PPG signals from different locations (forehead, ears, fingers, and toes) and then calculates the PWV based on the pulse transit time and distance The MPPT system calculated the regional PWV from the PPG signals measured at a sampling frequency of 1 kHz.…”

“…The MPPT device synchronously measures several PPG signals from different locations (forehead, ears, fingers, and toes) and then calculates the PWV based on the pulse transit time and distance The MPPT system calculated the regional PWV from the PPG signals measured at a sampling frequency of 1 kHz. The beginning of the pulse wave for each of the pulses was determined by the intersecting tangent method, according to [22].…”

Temporal effects of two interferential current applications on peripheral circulation in children with hemiplegic cerebral palsy

“…A PPG blood volume pulse (BVP) biofeedback system (NeXus 10; Amsterdam, The Netherlands), which is considered a reliable research tool for the assessment and modification of peripheral blood volume by biofeedback applications (Medical Community Europe certified, United States Food and Drug Administration registered), was used to measure the changes in blood volume in the vessels using a BVP sensor. 21 , 22 The BVP amplitude was calculated from the raw BVP signal and represented the relative amount of blood flow. The measurement unit is mV, a good BVP signal, as measured by the NeXus Biofeedback equipment, produces an amplitude of 10–100 mV or higher.…”

Age-Related Changes in Blood Volume Pulse Wave at Fingers and Ears

“…Another study showed a high correlation between the estimated age using photoplethysmography (PPG)-based pulse wave and the real chronological age [13]. Additionally, several studies have explored the use of pulse wave analysis for the direct evaluation of arterial stiffness [14][15][16]. For example, it has been reported that the time delay between pulse waves captured at different sites correlated well with the reference carotid to femoral PWV (cfPWV) measured using the commonly known applanation tonometry method [15].…”