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通过时域近红外光谱法测量新生儿大脑光学特性和血流动力学参数

measure of neonate brain optical properties and hemodynamic parameters by time-domain near-infrared spectroscopy.

作者信息

Spinelli Lorenzo, Zucchelli Lucia, Contini Davide, Caffini Matteo, Mehler Jacques, Fló Ana, Ferry Alissa L, Filippin Luca, Macagno Francesco, Cattarossi Luigi, Torricelli Alessandro

机构信息

CNR, Istituto di Fotonica e Nanotecnologie, Milano, Italy.

Politecnico di Milano, Dipartimento di Fisica, Milano, Italy.

出版信息

Neurophotonics. 2017 Oct;4(4):041414. doi: 10.1117/1.NPh.4.4.041414. Epub 2017 Aug 18.

DOI:10.1117/1.NPh.4.4.041414
PMID:28840165
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5561670/
Abstract

By exploiting a multichannel portable instrument for time-domain near-infrared spectroscopy (TD-NIRS), we characterized healthy neonates' brains in term of optical properties and hemodynamic parameters. In particular, we assessed the absolute values of the absorption and reduced scattering coefficients at two wavelengths, together with oxy-, deoxy- and total hemoglobin concentrations, and the blood oxygen saturation of the neonates' brains. In this study, 33 healthy full-term neonates were tested, obtaining the following median values: 0.28 and [Formula: see text] for [Formula: see text] at 690 and 820 nm, respectively; 5.8 and [Formula: see text] for [Formula: see text] at 690 and 820 nm, respectively; [Formula: see text] for [Formula: see text]; [Formula: see text] for [Formula: see text]; [Formula: see text] for [Formula: see text]; 72% for [Formula: see text]. In general, the agreement of these values with the sparse existing literature appears not always consistent. These findings demonstrate the first measurements of optical properties of the healthy neonate brain using TD-NIRS and show the need for clarification of optical properties across methods and populations.

摘要

通过利用一种用于时域近红外光谱(TD-NIRS)的多通道便携式仪器,我们从光学特性和血液动力学参数方面对健康新生儿的大脑进行了表征。具体而言,我们评估了两个波长下吸收系数和约化散射系数的绝对值,以及新生儿大脑的氧合血红蛋白、脱氧血红蛋白和总血红蛋白浓度,还有血氧饱和度。在本研究中,对33名健康足月儿进行了测试,得到以下中位数:690和820nm处的μa分别为0.28和[公式:见原文];690和820nm处的μ's分别为5.8和[公式:见原文];[公式:见原文]的HbO₂为[公式:见原文];[公式:见原文]的HbR为[公式:见原文];[公式:见原文]的HHb为[公式:见原文];[公式:见原文]的StO₂为72%。总体而言,这些值与现有的少量文献的一致性似乎并不总是一致的。这些发现展示了使用TD-NIRS对健康新生儿大脑光学特性的首次测量,并表明需要明确不同方法和人群的光学特性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a830/5561670/597619629e16/NPh-004-041414-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a830/5561670/102b111b78e0/NPh-004-041414-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a830/5561670/936477a475de/NPh-004-041414-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a830/5561670/c9a2666b1bee/NPh-004-041414-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a830/5561670/bafd0016f267/NPh-004-041414-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a830/5561670/597619629e16/NPh-004-041414-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a830/5561670/102b111b78e0/NPh-004-041414-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a830/5561670/936477a475de/NPh-004-041414-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a830/5561670/c9a2666b1bee/NPh-004-041414-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a830/5561670/bafd0016f267/NPh-004-041414-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a830/5561670/597619629e16/NPh-004-041414-g005.jpg

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