Simultaneous Measurement of Local Pulse Wave Velocities in Radial Arteries Using a Soft Sensor Based on the Fiber...

Area of Science:

• Biomedical Engineering
• Cardiovascular Physiology
• Medical Diagnostics

Background:

• Arterial stiffness is a key cardiovascular disease indicator.
• Pulse Wave Velocity (PWV) measures arterial stiffness.
• Local PWV offers higher precision than regional PWV but is challenging to measure.

Purpose of the Study:

• To develop a noninvasive method for simultaneous measurement of local PWV in left and right radial arteries.
• To assess the feasibility and potential of this new technique for cardiovascular health evaluation.

Main Methods:

• Utilized Fiber Bragg Grating (FBG) technique.
• Employed correlation analysis of pulse pairs at the fossa cubitalis and wrist.
• Simultaneously measured local PWV in both radial arteries.

Main Results:

• Demonstrated successful noninvasive measurement of local PWV in five young male volunteers.
• Reported average left radial PWV (9.44–12.35 m/s) and right radial PWV (11.50–14.83 m/s).
• Observed a consistent inter-arterial difference in PWV (2.27–3.04 m/s) for each individual.

Conclusions:

• The FBG-based method enables dynamic analysis of local PWV.
• This technique can enhance the diagnosis of early arterial stiffening.
• Provides new insights for cardiovascular disease diagnosis and management.