Fiber-based frequency-modulated continuous-wave near-infrared spectroscopy for transabdominal fetal pulse oximetry

Shing-Jiuan Liu; Soheil Ghiasi; Weijian Yang

doi:10.1117/12.2608448

7 March 2022 Fiber-based frequency-modulated continuous-wave near-infrared spectroscopy for transabdominal fetal pulse oximetry

Shing-Jiuan Liu, Soheil Ghiasi, Weijian Yang

Author Affiliations +

Proceedings Volume PC11953, Optical Fibers and Sensors for Medical Diagnostics, Treatment and Environmental Applications XXII; PC119530C (2022) https://doi.org/10.1117/12.2608448
Event: SPIE BiOS, 2022, San Francisco, California, United States

Abstract

We propose a novel non-invasive approach to transabdominally measure fetal oxygen saturation via time-domain near-infrared spectroscopy. We employ the frequency-modulated continuous-wave technique to measure the time-resolved reflectance of near-infrared light shining on the maternal abdomen. The time-of-flight reflectance reveals path-lengths of different photons traveling through the tissue, facilitating the separation of signal from the shallow maternal layer and the deep fetal layer. Using two optical wavelengths, oxygen saturation of the fetus can be measured. This technique has the potential to improve labor outcomes by providing an important assessment of fetal health intrapartum.

Conference Presentation

Citation Download Citation

Shing-Jiuan Liu, Soheil Ghiasi, and Weijian Yang "Fiber-based frequency-modulated continuous-wave near-infrared spectroscopy for transabdominal fetal pulse oximetry", Proc. SPIE PC11953, Optical Fibers and Sensors for Medical Diagnostics, Treatment and Environmental Applications XXII, PC119530C (7 March 2022); https://doi.org/10.1117/12.2608448

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