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Vol. 87, Issue 1, January 2008, pp.39-45

 

Bullet

 

An Optoelectronic Sensor Configuration for the Determination of Age Related Indices Using Blood Volume Pulse

 

1,2Jayasree V. K, 1,3Shaija P. J, 1Manu P. John, 1P. Radhakrishnan

1International School of Photonics

Cochin University of Science & Technology, Kochi-22, Kerala, India

2 College of Engineering, Adoor, Kerala, India

3 Model Engineering College, Thrikkakara, Kochi-24, Kerala, India

Tel.: +91 4842575848, fax: +91 4842576714

E-mail: jayasreevk@gmail.com, http://www.photonics.cusat.edu

 

 

Received: 8 January 2008   /Accepted: 23 January 2008   /Published: 28 January 2008 

 

Abstract: The aim of this work is to study noninvasively the systolic and diastolic characteristics of the resting peripheral volume pulse using a normalized mean pulse as a function of age using an indigenously developed hardware setup. Evaluation of the minimum rise time (MRT), Stiffness index (S.I) and the ratio between the pulse height at the dicrotic notch of the blood volume pulse (P0) and the systolic peak (P1) demonstrated strong correlations with age. The younger age group had lower MRT, S.I, and P0/P1 values when compared to the older group. This study establishes the usefulness of the blood volume pulse contour analysis in determining the changes in the elastic properties of the vascular system with age.

 

Keywords: Blood volume pulse, photoplethysmograph, dicrotic notch, stiffness index, minimum rise time.

 

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