City Research Online

Preliminary assessment of abdominal organ perfusion utilizing a fiber optic photoplethysmographic sensor

Hickey, M., Samuels, N., Randive, N. , Langford, R. M. & Kyriacou, P. A. (2010). Preliminary assessment of abdominal organ perfusion utilizing a fiber optic photoplethysmographic sensor. In: Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference. 2010 Annual International Conference of the IEEE, Aug. 31 2010-Sept. 4 2010, Buenos Aires. doi: 10.1109/IEMBS.2010.5627751


In an attempt to overcome the limitations of current techniques for monitoring abdominal organ perfusion, a prototype reflectance fiber optic photoplethysmographic (PPG) sensor and processing system was evaluated on seventeen anaesthetized patients undergoing laparotomy. Good quality PPG signals were obtained from the large bowel, small bowel, liver and stomach. Simultaneous PPG signals from the finger were also obtained for comparison purposes using an identical fiber optic sensor. Analysis of the mean ac and dc PPG amplitudes of all acquired signals indicated larger amplitudes for those signals obtained from abdominal organs than those obtained from the finger. Mean estimated blood oxygen saturation (SpO2) values from all abdominal sites showed good agreement with those obtained from the finger using both the finger fiber optic sensor and a commercial finger pulse oximeter. Furthermore, a Bland and Altman between-method-differences analysis on the estimated SpO2 data suggests that a fiber optic abdominal sensor may be a suitable method for the evaluation of abdominal organ perfusion.

Publication Type: Conference or Workshop Item (Paper)
Additional Information: © 2010 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.
Publisher Keywords: Science & Technology; Technology; Engineering, Biomedical; Engineering, Electrical & Electronic; Engineering; VIABILITY
Subjects: R Medicine
T Technology > TA Engineering (General). Civil engineering (General)
Departments: School of Science & Technology
School of Science & Technology > Engineering
[thumbnail of IEEE EMBC Hickey 2010.pdf]
Text - Accepted Version
Download (534kB) | Preview


Add to AnyAdd to TwitterAdd to FacebookAdd to LinkedinAdd to PinterestAdd to Email


Downloads per month over past year

View more statistics

Actions (login required)

Admin Login Admin Login