Estimation of Venous oxygenation saturation using the finger Photoplethysmograph (PPG) waveform

Kyriacou, P. A. (2012). Estimation of Venous oxygenation saturation using the finger Photoplethysmograph (PPG) waveform. Paper presented at the 34th Annual International Conference of the IEEE Engineering-in-Medicine-and-Biology-Society (EMBS), 28-08-2012 - 01-09-2012, San Diego, USA.

[img]
Preview
Text - Accepted Version
Download (387kB) | Preview

Abstract

In this study, finger photoplethysmograph data obtained from twelve patients undergoing cardiothoracic surgery were analyzed in order to estimate the venous saturation utilizing the modulations created by the positive pressure ventilation in the AC Photoplethysmograph (PPG) signals. The PPG signals were analyzed in the time-domain using a conventional pulse oximetry algorithm to produce estimations of arterial oxygen saturation. The instantaneous arterial and venous saturations were estimated by utilizing time-frequency analysis technique of Smoothed-pseudo Wigner-Ville Distribution (SPWVD). The results showed that there was no significant difference in the traditionally-derived (time-domain) arterial saturation and the instantaneous arterial saturation. However, the instantaneous venous saturation was found to be significantly lower than the time-domain estimated and instantaneous arterial saturation (P=<;0.001).

Item Type: Conference or Workshop Item (Paper)
Additional Information: © 2012 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Subjects: R Medicine > R Medicine (General)
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: School of Engineering & Mathematical Sciences > Engineering
URI: http://openaccess.city.ac.uk/id/eprint/12966

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics