Fiber-based frequency-modulated continuous-wave near-infrared spectroscopy for transabdominal fetal pulse oximetry
Fiber-based frequency-modulated continuous-wave near-infrared spectroscopy for transabdominal fetal pulse oximetry
复制标题
用于经腹胎儿脉搏血氧测定的光纤调频连续波近红外光谱
DOI：
10.1117/12.2608448
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Yang, Weijian
中科院分区：
文献类型：
--
作者：
Liu, Shing-Jiuan;Ghiasi, Soheil;Yang, Weijian
我们提出了一种新的非侵入性的方法来测量胎儿血氧饱和度通过时域近红外光谱。我们采用调频连续波技术来测量照射在孕妇腹部的近红外光的时间分辨反射率。飞行时间反射率揭示了不同光子穿过组织的路径长度，有助于分离来自浅层母体层和深层胎儿层的信号。使用两个光学波长，可以测量胎儿的氧饱和度。这项技术有可能通过提供分娩时胎儿健康的重要评估来改善分娩结局。
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.