Detection of propofol concentrations in blood by Raman spectroscopy

M. S. Wróbel; M. Gnyba; R. Urniaż; T. S. Myllylä; M. Jędrzejewska-Szczerska

doi:10.1117/12.2182963

15 July 2015 Detection of propofol concentrations in blood by Raman spectroscopy

M. S. Wróbel, M. Gnyba, R. Urniaż, T. S. Myllylä, M. Jędrzejewska-Szczerska

Proceedings Volume 9537, Clinical and Biomedical Spectroscopy and Imaging IV; 95370Z (2015) https://doi.org/10.1117/12.2182963
Event: European Conferences on Biomedical Optics, 2015, Munich, Germany

Abstract

In this paper we present a proof-of-concept of a Raman spectroscopy-based approach for measuring the content of propofol, a common anesthesia drug, in whole human blood, and plasma, which is intended for use during clinical procedures. This method utilizes the Raman spectroscopy as a chemically–sensitive method for qualitative detection of the presence of a drug and a quantitative determination of its concentration. A number of samples from different patients with added various concentrations of propofol IV solution were measured. This is most equivalent to a real in-vivo situation. Subsequent analysis of a set of spectra was carried out to extract qualitative and quantitative information. We conclude, that the changes in the spectra of blood with propofol, overlap with the most prominent lines of the propofol solution, especially at spectral regions: 1450 cm^-1, 1250- 1260 cm^-1, 1050 cm^-1, 875-910 cm^-1, 640 cm^-1. Later, we have introduced a quantitative analysis program based on correlation matrix closest fit, and a LOO cross-validation. We have achieved 36.67% and 60% model precision when considering full spectra, or specified bands, respectively. These results prove the possibility of using Raman spectroscopy for quantitative detection of propofol concentrations in whole human blood.

Citation Download Citation

M. S. Wróbel, M. Gnyba, R. Urniaż, T. S. Myllylä, and M. Jędrzejewska-Szczerska "Detection of propofol concentrations in blood by Raman spectroscopy", Proc. SPIE 9537, Clinical and Biomedical Spectroscopy and Imaging IV, 95370Z (15 July 2015); https://doi.org/10.1117/12.2182963

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