NDLI: Evaluation of a fiber-optic esophageal pulse oximeter

Content Provider	IEEE Xplore Digital Library
Author	Phillips, J.P. Langford, R.M. Chang, S.H. Maney, K. Kyriacou, P.A. Jones, D.P.
Copyright Year	2009
Description	Author affiliation: Anaesthetic Laboratory, St Bartholomew¿s Hospital, London, EC1A 7BE, UK (Langford, R.M.; Chang, S.H.; Maney, K.) \|\| School of Engineering and Mathematical Sciences, City University, London, EC1V 0HB, UK (Phillips, J.P.; Kyriacou, P.A.; Jones, D.P.)
Abstract	A dual-wavelength fiber-optic pulse oximetry system was developed for the purposes of estimating oxygen saturation from the esophagus. A probe containing miniature right-angled glass prisms was used to record photoplethysmographic (PPG) signals from the esophageal wall. Signals were recorded successfully in 19 of 20 patients, demonstrating that PPG signals could be reliably obtained from an internal vascularized tissue site such as the esophageal epithelium. The value of the mean oxygen saturation recorded from the esophagus was 94.0 ± 4.0%. These results demonstrate that SpO2 may be estimated in the esophagus using a fiber-optic probe and this may be the first report of such measurements.
Starting Page	1509
Ending Page	1512
File Size	798855
Page Count	4
File Format	PDF
ISBN	9781424432967
ISSN	1557170X
DOI	10.1109/IEMBS.2009.5334160
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Esophagus Probes Optical fibers Fingers Glass Biomedical optical imaging Optical saturation Reflectivity Light emitting diodes Surgery
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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