Dear All,
i came across different papers (mostly published between 2000 and 2010, i.e. "Predicting Arterial Stiffness From the Digital Volume Pulse Waveform") in which formulas and associations were found in order to calculate an arterial stiffness index through a pletismographic assessment.
Since the methodology seems reliable and of much easier assessment compared to tonometry, does anybody know if there are commercially available devices and softwares which may acquire digital volume pulse waveforms and provided arterial stiffness indexes?
Thanks
Aortic stiffness as measured by aortic pulse wave velocity (PWV) is an independent predictor of CVD, however, the measurement of PWV is complex and time-consuming. A study by Alty et al. has shown that pulse contour characteristics depend on arterial properties such as arterial stiffness. This paper presents a method for estimating PWV from the digital volume pulse (DVP), a waveform that can be rapidly and simply acquired by measuring the transmission of infra-red light through the finger pulp.
AltySR1, Angarita-Jaimes N, Millasseau, Chowienczyk PJ. Predicting arterial stiffness from the digital volume pulse waveform. IEEE Trans Biomed Eng 2007 Dec;54(12):2268-75.
doi: 10.1109/tbme.2007.897805.
Hi Ambra
This is a technic that we use a lot.
I spervised a PhD thesis about the subject. I will translate it to English and send to you.
You are absolutery right when consider the obtaining pletismographic wave form is much easier than pulse wave contour. However these are two different proceses: pletismography describes blood flow and pulse wave contour depicts arterial wall motions. They look quite similar but are not the same. That is why we prefer pulse wave form analysis to pletismographic data.
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