Optical methods represent a promising non-invasive, non-contact solution for local pulse wave velocity measurement to assess arterial stiffness, overcoming limitations of current commercial devices.
The great incidence of cardiovascular (CV) diseases in the world spurs the search for new solutions to enable an early detection of pathological processes and provides more precise diagnosis based in multi-parameters assessment. The pulse wave velocity (PWV) is considered one of the most important clinical parameters for evaluate the CV risk, vascular adaptation, and therapeutic efficacy. Several studies were dedicated to find the relationship between PWV measurement and pathological status in different diseases, and proved the relevance of this parameter. The commercial devices dedicate to PWV estimation make a regional assessment (measured between two vessels), however a local measurement is more precise evaluation of artery condition, taking into account the differences in the structure of arteries. Moreover, the current devices present some limitations due to the contact nature. Emerging trends in CV monitoring are moving away from more invasive technologies to non-invasive and non-contact solutions. The great challenge is to explore the new instrumental solutions that allow the PWV assessment with fewer approximations for an accurately evaluation and relatively inexpensive techniques in order to be used in the clinical routine.
Pereira et al. (Thu,) conducted a review in Cardiovascular diseases. Pulse wave velocity measurement methods was evaluated. Optical methods represent a promising non-invasive, non-contact solution for local pulse wave velocity measurement to assess arterial stiffness, overcoming limitations of current commercial devices.
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