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In situ monitoring of mean blood oxygen saturation using extended modified lambert beer model

Huong, Audrey Kah Ching and Ngu, Xavier (2015) In situ monitoring of mean blood oxygen saturation using extended modified lambert beer model. Biomedical Engineering Applications, Basis and Communications, 27 (1). ISSN 1016-2372


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We present the use of Extended Modified Lambert-Beer model far optical monitoring of mean blood oxygen saturation (S,02) via a fitting praeedurc. This work facuses on the absorption characteristics of hemoglobin derivatives in the wavelength range of 520-600 nm to give the best estimate of SmO2. The study of the feasibility of applying this analytic method to skin oximetry is via spectroscopy data collected from fingertips of four healthy volunteers both at rest and during arterial blood occlusion condition. The results revealed a decrease in the mean of mean and standard deviation of S-r.O l. value of fingertips from 94.5 + 2.19% when volunteers were at rest to 56.76 & 5.8% during the arterial blood occlusion measurement. The larger variation in the value estimated for blood occlusion condition could be a result of differences in volunteers' physical fitness and hypertension status. These estimated Sm02 values agreed reasonably well with the value reported in most of the previous studies. This work concluded that the purposed technique can potentially be used as a complementary technique to clinical assessment of skin grafts and burnt skin.

Item Type: Article
Uncontrolled Keywords: extended modified Lambert-Beer model; mean blood oxygen saturation; skin oximetry; spectroscopy
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics
Divisions: Faculty of Electrical and Electronic Engineering > Department of Electronic Engineering
Depositing User: Normajihan Abd. Rahman
Date Deposited: 17 Sep 2015 07:29
Last Modified: 17 Sep 2015 07:29
URI: http://eprints.uthm.edu.my/id/eprint/7258
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