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Noninvasive measurement of fetal oxygen saturation can provide clinicians with critical information about fetal health, and potentially contribute to improved management of childbirth. We recently proposed a novel transabdominal fetal pulse oximetry through frequency-modulated continuous-wave near-infrared spectroscopy. Here, we report our experimental results which validate one of the most important steps of our method. By shining near-infrared light on the pregnant sheep abdomen and measuring the time-resolved reflectance, we have successfully extracted the fetal heartbeat signal originating from deep tissue. This result sets up the foundation to further improve our transabdominal fetal oxygen saturation measurement method.
Shing-Jiuan Liu,Su Yeon Lee,Christopher D. Pivetti,Aijun Wang,Diana L. Farmer,Soheil Ghiasi, andWeijian Yang
"Transabdominal fetal heart rate measurement through fiber based frequency-modulated continuous-wave near-infrared spectroscopy", Proc. SPIE PC12372, Optical Fibers and Sensors for Medical Diagnostics, Treatment and Environmental Applications XXIII, PC1237205 (6 March 2023); https://doi.org/10.1117/12.2648745
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Shing-Jiuan Liu, Su Yeon Lee, Christopher D. Pivetti, Aijun Wang, Diana L. Farmer, Soheil Ghiasi, Weijian Yang, "Transabdominal fetal heart rate measurement through fiber based frequency-modulated continuous-wave near-infrared spectroscopy," Proc. SPIE PC12372, Optical Fibers and Sensors for Medical Diagnostics, Treatment and Environmental Applications XXIII, PC1237205 (6 March 2023); https://doi.org/10.1117/12.2648745