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Erschienen in:
2018 | OriginalPaper | Buchkapitel
e-PWV: A Web Application for Assessing Online Carotid-Femoral Pulse Wave Velocity
verfasst von : Mathieu Collette, Naoures Hassine, Carlo Palombo, Georges Leftheriotis
Erschienen in: Internet of Things (IoT) Technologies for HealthCare
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Abstract
This article presents e-PWV, a web application for the determination of Pulse Wave Velocity (PWV) running on a web platform called NooLib. e-PWV has been applied on signals recorded by an ultrasound system (\(PWV_{et}\), Aloka, Japan) and representing the arterial diameter changes in carotid and femoral sites. \(PWV_{et}\) measurements were compared to PWV recorded by a tonometric technique (\(PWV_{pp}\), PulsePen, Italy). The study was conducted on 120 patients. We found an excellent correlation of r = 0.95 between \(PWV_{et}\) et \(PWV_{pp}\) (\(P<0.0001\); 95% confidence interval of 0.91–0.96; \(PWV_{et}=0.88\times PWV_{pp} + 0.57\)). We observed a small offset of \(-0.33\) ms\(^{-1}\) on the Bland-Altman plot with a limit of agreement from \(-2.21\) to 1.54 ms\(^{-1}\). Our results suggest that e-PWV application can produce online a reliable marker of the regional aortic stiffness using an echotracking system.