Analysis of cerebral hemodynamic fluctuations measured simultaneously by magnetic resonance imaging and near-infrared spectroscopy

被引:0
|
作者
Toronov, V [1 ]
Wolf, M [1 ]
Michalos, A [1 ]
Gratton, E [1 ]
Webb, A [1 ]
Hueber, D [1 ]
Fantini, S [1 ]
机构
[1] Univ Illinois, Dept Phys, Fluorescence Dynam Lab, Urbana, IL 61801 USA
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中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We measure cerebral hemodynamic fluctuations simultaneously by near-infrared spectroscopy and magnetic resonance imaging during functional stimulations. Our repetitive stimulation protocol includes a variety of epochs differing in duration of stimulation and relaxation periods, which allows generating hemodynamic signals highly synchronous with stimulation sequence. Our goals are to compare results of temporal analysis of hemodynamic fluctuations measured by near-infrared spectroscopy and high-speed magnetic resonance imaging, and to compare optical maps of brain activity based on the results of temporal analysis of NIRS signals with magnetic resonance images. (C) 1999 Optical Society of America.
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页码:461 / 463
页数:3
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