Advertisement

Second derivative analysis of forehead photoplethysmographic signal in healthy volunteers and diabetes patients

  • K. Pilt
  • K. Meigas
  • K. Temitski
  • M. Viigimaa
Part of the IFMBE Proceedings book series (IFMBE, volume 39)

Abstract

The second derivative analysis has been used to characterize the changes in forehead photoplethysmographic (PPG) signal, which are caused by the stiffness of blood vessels. Before the distinctive wave amplitudes were measured the forehead PPG signals from healthy volunteers and diabetes patients were filtered, two times differentiated, normalized in length, and averaged. The correlation relationships between normalized amplitudes and age were found. The values of normalized amplitudes b/a and d/a were found to be influenced by the stiffness of the blood vessels.

Keywords

Photoplethysmography second derivative method arterial stiffness 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Technomedicum / Department of Biomedical EngineeringTallinn University of TechnologyTallinnEstonia

Personalised recommendations