Accuracy of tissue oxygen saturation measurement with multidistance CW fNIRS: a phantom study

Leila Motamed Jahromi; Lin Yang; Dirk Grosenick; Alexander von Lühmann

doi:10.1117/12.2670875

9 August 2023 Accuracy of tissue oxygen saturation measurement with multidistance CW fNIRS: a phantom study

Leila Motamed Jahromi, Lin Yang, Dirk Grosenick, Alexander von Lühmann

Proceedings Volume 12628, Diffuse Optical Spectroscopy and Imaging IX; 126282D (2023) https://doi.org/10.1117/12.2670875
Event: European Conferences on Biomedical Optics, 2023, Munich, Germany

Abstract

We investigate the potential of CW fNIRS with two NIR wavelengths to estimate tissue oxygen saturation by a model based on spatially resolved spectroscopy. Phantoms with optical properties similar to brain tissue are applied to study the influence of the optical parameters and the spatial probe configuration on effective attenuation, absorption, and oxygen saturation. Attenuation coefficients and saturation values can be estimated with a typical discrepancy of 5%, whereas absorption coefficients show larger deviations from the true values. The results are very sensitive against small errors in the source-detector separation.

Citation Download Citation

Leila Motamed Jahromi, Lin Yang, Dirk Grosenick, and Alexander von Lühmann "Accuracy of tissue oxygen saturation measurement with multidistance CW fNIRS: a phantom study", Proc. SPIE 12628, Diffuse Optical Spectroscopy and Imaging IX, 126282D (9 August 2023); https://doi.org/10.1117/12.2670875

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