Oxyhemoglobin saturation measurements by green spectral shift.

TitleOxyhemoglobin saturation measurements by green spectral shift.
Publication TypeJournal Article
Year of Publication2006
AuthorsDenninghoff KR, Chipman RA, Hillman LW
JournalOpt Lett
Volume31
Issue7
Pagination924-6
Date Published2006 Apr 1
ISSN Number0146-9592
KeywordsAlgorithms, Blood Chemical Analysis, Computer Simulation, Humans, Models, Chemical, Oximetry, Oxyhemoglobins, Spectrum Analysis
Abstract

From an analysis of new hemoglobin solution transmission spectra at various oxygen saturations (SO2), path lengths, and pH, we find the determination of SO2 by using the classical oximetry technique to be poorly calibrated. We used this data set to develop a proposed method for SO2 determination based on the spectral shift of the hemoglobin transmission minimum between 475 and 510 nm. The method does not require accurate knowledge of hemoglobin extinction coefficients and is linear in relation to SO2 despite changes in path length, pH, or hemoglobin concentration.

Alternate JournalOpt Lett
PubMed ID16599213
Faculty Reference: 
Kurt Denninghoff, MD