Back to Search
Start Over
P76 PERIPHERAL BLOOD PRESSURE AND STIFFNESS INDEX ESTIMATION USING THE PPG SIGNAL MEASURED WITH THE pOpmètre DEVICE: CALIBRATION WITH THE CUFF BLOOD PRESSURE
- Source :
- Artery Research, Vol 20 (2017)
- Publication Year :
- 2017
- Publisher :
- Atlantis Press, 2017.
-
Abstract
- Arterial stiffness may influence the contour of the peripheral pulse, suggesting that contour analysis of the digital volume pulse (DVP) might be used to estimate peripheral blood pressure and a stiffness index (SI). The objective is to establish a transfer function that estimates the peripheral blood pressure using the PPG pulse, calibrated with a brachial pressure cuff, and then to deduce a stiffness index using the established parameters. We positioned the photodiode sensor on the finger. Brachial blood pressure measurement was performed with a cuff adapted to the arm circumference and an oscillometric device (Omron M10 -IT). Pulse wave velocity (PWV) measurements were performed with the pOpmètre® system. DVP waveforms were recorded over a 10 s period and ensemble-averaged to obtain a single waveform from which DT (DVP) was determined as the time between the first systolic peak and the early diastolic peak/inflection point in the waveform. The SI is the ratio of the subject’s height to the DT (DVP). 69 subjects were included: 24 healthy subjects and 45 patients with essential hypertension. The correlation between the estimated peripheral diastolic pressure and the brachial one was good and significant (r2 = 0.51; p < 0.001). A better correlation was found in terms of peripheral systolic pressure (r2 = 0.56; p < 0.001). The correlation between the SI and the ft-PWV was significant (r = 0.5; p < 0.001) classifying the estimation as good agreement. The estimation of the peripheral blood pressure and a stiffness index with the PPG signal qualifies as good agreement with the reference technique.
Details
- Language :
- English
- ISSN :
- 18764401
- Volume :
- 20
- Database :
- OpenAIRE
- Journal :
- Artery Research
- Accession number :
- edsair.doi.dedup.....49fb92a7280b544be344efa9c75f560a