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Feasibility studies of Bragg probe for non-invasive carotid pulse waveform assessment

Leitão, C. Leitão ; Bilro, L. ; Alberto, N. ; Antunes, P. ; Lima, H. ; André, P.S ; Nogueira, R.N. ; Pinto, J. L.

Journal of Biomedical Optics Vol. 18, Nº 1, pp. 017006-1 - 017006-6, January, 2013.

ISSN (print): 1083-3668
ISSN (online): 1083-3668

Journal Impact Factor: 3,157 (in 2011)

Digital Object Identifier: 10.1117/1.JBO.18.1.017006

Abstract
The arterial stiffness evaluation is largely reported as an independent predictor of cardiovascular diseases.
The central pulse waveform can provide important data about arterial health and has been studied in patients
with several pathologies, such as diabetes mellitus, coronary artery disease and hypertension. The implementation
and feasibility studies of a fiber Bragg grating probe for noninvasive monitoring of the carotid pulse are described
based on fiber Bragg grating technology. Assessment tests were carried out in carotids of different volunteers and it
was possible to detect the carotid pulse waveform in all subjects. In one of the subjects, the sensor was also tested in
terms of repeatability. Although further tests will be required for clinical investigation, the first studies suggest that
the developed sensor can be a valid alternative to electromechanical tonometers.