NONINVASIVE INVIVO NEAR-INFRARED OPTICAL MEASUREMENT OF THE PENETRATION DEPTH IN THE NEONATAL HEAD
NONINVASIVE INVIVO NEAR-INFRARED OPTICAL MEASUREMENT OF THE PENETRATION DEPTH IN THE NEONATAL HEAD
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DOI：
10.1088/0143-0815/12/4/005
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发表时间：
1991-11-01
期刊：
影响因子：
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通讯作者：
SPENCER, A
中科院分区：
文献类型：
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作者：
FARIS, F;THORNILEY, M;SPENCER, A
近红外光谱（NIRS）的非侵入性光学技术被用来测量在近红外区的四个波长的光穿透深度。对10名早产儿进行了近红外吸光度测量。在头部的不同位置测量在775、805、845和904 nm处收集的表观吸光度数据（以光密度单位计）。当将给定波长处的表观吸光度与光极间距离绘制成图时，获得了满足朗伯定律的线性关系。根据所得直线的斜率，计算NIR光的穿透深度，发现其与探头在头部上的位置无关。近红外光在整个新生儿头部的穿透深度的计算平均值在6.3和8.5毫米之间。
The non-invasive optical technique of near-infrared spectroscopy (NIRS) was used to measure the depths of light penetration at four wavelengths in the NIR region. Near-infrared absorbance measurements were carried out on 10 preterm infants. The apparent absorbance data (in optical density units) collected at 775, 805, 845, and 904 nm were measured at different positions on the head. Linear relationships that satisfy the Lambert law were obtained when the apparent absorbance at a given wavelength was plotted against the inter-optrode distance. From the slopes of the resulting straight lines, the depth of penetration of the NIR light was calculated and found to be independent of the position of the probes on the head. Calculated average values of the depth of penetration of near-infrared light in the whole neonatal head ranged between 6.3 and 8.5 mm.