Noninvasive fiber optic measurement of carotid to radial apparent phase velocity in hypertensive subjects

Foot-to-foot pulse wave velocity has been popularly used in the clinical assessment of the local elastic properties of arteries. The apparent phase velocity (c/sub app/) however contains considerable more information about vascular interaction. We investigated this latter noninvasively in normal and...

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Bibliographic Details
Main Authors: Li, J.K.-J., Amory, D., Singh, M., McMahon, R., Ying Zhu, Drzewiecki, G., O'Hara, D.
Format: Conference Proceeding
Language:English
Subjects:
Arteries
Biomedical measurements
Blood pressure
Hypertension
Optical fiber sensors
Optical fibers
Optical pulses
Phase measurement
Pulse measurements
Velocity measurement
Online Access:Request full text
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Summary:Foot-to-foot pulse wave velocity has been popularly used in the clinical assessment of the local elastic properties of arteries. The apparent phase velocity (c/sub app/) however contains considerable more information about vascular interaction. We investigated this latter noninvasively in normal and hypertensive subjects by means of a pair of matched fiber optic sensors applied to carotid and radial arteries. Results show that c/sub app/ is higher at low than at high frequencies and with larger amplitudes and oscillations in hypertensives.
DOI:10.1109/IEMBS.1995.575015