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- C. E. Elwell
- Department of Medical Physics and Bioengineering, University College London, United Kingdom.
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- M. Cope
- Department of Medical Physics and Bioengineering, University College London, United Kingdom.
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- A. D. Edwards
- Department of Medical Physics and Bioengineering, University College London, United Kingdom.
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- J. S. Wyatt
- Department of Medical Physics and Bioengineering, University College London, United Kingdom.
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- D. T. Delpy
- Department of Medical Physics and Bioengineering, University College London, United Kingdom.
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- E. O. Reynolds
- Department of Medical Physics and Bioengineering, University College London, United Kingdom.
抄録
<jats:p> Near-infrared spectroscopy was used to measure global cerebral blood flow and volume in 10 healthy adult volunteers. High- and low-cerebral blood flow compartments were detected with mean flows for all 10 subjects of 59 +/- 21 (SD) and 11 +/- 4 ml.100 g-1.min-1, respectively. The mean cerebral blood volume of the group was 2.85 +/- 0.97 ml/100 g. Analysis of spontaneous changes in the cerebral concentrations of oxyhemoglobin and deoxyhemoglobin demonstrated strong correlations between respiratory rate and the oscillation frequency of cerebral oxyhemoglobin concentration (r = 0.99) and arterial oxygen saturation (SaO2) (r = 0.99). An estimate of the mean cerebral oxygen saturation for all subjects averaged 59.4 +/- 12.4% when their mean SaO2 was 91.8 +/- 2.4% (equivalent to 67.6 +/- 13.8% at a normoxic SaO2 of 98%). These results demonstrate that near-infrared spectroscopy can be used as a noninvasive bedside technique for both qualitative and quantitative evaluation of cerebral hemodynamics and oxygenation in adults. </jats:p>
収録刊行物
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- Journal of Applied Physiology
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Journal of Applied Physiology 77 (6), 2753-2760, 1994-12-01
American Physiological Society
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詳細情報 詳細情報について
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- CRID
- 1361418518960053504
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- ISSN
- 15221601
- 87507587
- http://id.crossref.org/issn/87507587
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- データソース種別
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- Crossref