Investigation of Photoplethysmographic Signals in Human Visceral Organs

Kyriacou, P. A., Crerar-Gilbert, A., Langford, R. M. & Jones, D. P. (2001). Investigation of Photoplethysmographic Signals in Human Visceral Organs. Paper presented at the IX Mediterranean Conference on Medical and Biological Engineering and Computing (MEDICON 2001), 12-14 Jun 2001, Pula, Croatia.

[img]
Preview
Text - Accepted Version
Download (291kB) | Preview

Abstract

There is a need for reliable continuous monitoring of visceral organ oxygen saturation (SpO2). Splanchnic ischaemia may ultimately lead to cellular hypoxia and necrosis and may well contribute to the development of multiple organ failures and increased mortality. A new reflectance photoplethysmographic (PPG) probe and signal processing system were developed. PPG signals from abdominal organs (bowel, liver, and kidney) and the finger were obtained from 12 anaesthetised patients. The amplitudes of the abdominal organ PPGs were, on average, approximately the same as those obtained simultaneously from the finger. These observations suggest that pulse oximetry may be a valid monitoring technique for abdominal organs such as the bowel liver and kidney.

Item Type: Conference or Workshop Item (Paper)
Subjects: R Medicine > RC Internal medicine
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: School of Engineering & Mathematical Sciences > Engineering
URI: http://openaccess.city.ac.uk/id/eprint/14749

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics