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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Dai lijuan Qian Zhiyu Wang Huinan Peng Min |
| Copyright Year | 2006 |
| Description | Author affiliation: Dept. of Biomed. Eng., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing (Dai lijuan; Qian Zhiyu; Wang Huinan; Peng Min) |
| Abstract | Near-infrared spectroscopy was used to measure oxy-hemoglobin concentration $([HbO_{2}]),$ deoxy-hemoglobin concentration ([Hb]), total hemoglobin concentration ([HbT]), oxygen saturation of hemoglobin $(SO_{2}),$ cerebral blood flow (CBF), and cerebral blood volume (CBV). The purpose of this study was to find how these parameters changed when adults were excited, scared or waked by sensory stimulations. The tests were made on 18 healthy adult volunteers. High- and low-level of each variable with mean flows for all 18 subjects in the sleeping state are showed as 70plusmn10 and 19plusmn2 muM/1 for $[HbO_{2}],$ 18plusmn2 and 11plusmn2 muM/1 for [Hb], 88plusmn8 and 30plusmn2 muM/1 for [HbT], 77plusmn4% and 55plusmn5% for $SO_{2},$ 37plusmn2 and 13plusmn3 $mlldr100g^{-1}ldr$ $min^{-1}$ for CBF, 2.3plusmn0.5 and 1.5plusmn0.13 ml/100g for CBV. Analysis of changes in these variables when adults waked from the sleep state or excited or scared in the wake state are given to prove brain activity has a close relationship with cerebral local oxygen metabolism and hemodynamic variables. This noninvasive technique may be a powerful tool for brain functional research. |
| Starting Page | 159 |
| Ending Page | 162 |
| File Size | 299482 |
| Page Count | 4 |
| File Format | |
| ISBN | 0780397738 |
| DOI | 10.1109/METAMAT.2006.335024 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2006-10-16 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Spectroscopy Brain Fluid flow measurement Sleep Volume measurement Biochemistry Hemodynamics Monitoring Blood flow Testing |
| Content Type | Text |
| Resource Type | Article |
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