Measuring human cerebral blood flow and brain function with fiber-based speckle contrast optical spectroscopy system.
Measuring human cerebral blood flow and brain function with fiber-based speckle contrast optical spectroscopy system.
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DOI:
10.1038/s42003-023-05211-4
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发表时间:
2023-08-14
影响因子:
5.9
通讯作者:
Cheng, Xiaojun
中科院分区:
文献类型:
--
作者:
Kim, Byungchan;Zilpelwar, Sharvari;Sie, Edbert J.;Marsili, Francesco;Zimmermann, Bernhard;Boas, David A.;Cheng, Xiaojun
Cerebral blood flow (CBF) is crucial for brain health. Speckle contrast optical spectroscopy (SCOS) is a technique that has been recently developed to measure CBF, but the use of SCOS to measure human brain function at large source-detector separations with comparable or greater sensitivity to cerebral rather than extracerebral blood flow has not been demonstrated. We describe a fiber-based SCOS system capable of measuring human brain activation induced CBF changes at 33 mm source detector separations using CMOS detectors. The system implements a pulsing strategy to improve the photon flux and uses a data processing pipeline to improve measurement accuracy. We show that SCOS outperforms the current leading optical modality for measuring CBF, i.e. diffuse correlation spectroscopy (DCS), achieving more than 10x SNR improvement at a similar financial cost. Fiber-based SCOS provides an alternative approach to functional neuroimaging for cognitive neuroscience and health science applications. Fiber-based speckle contrast optical spectroscopy measures human brain activation via cerebral blood flow changes, outperforming current methods.
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DOI:
10.1364/josaa.25.002088
发表时间:
2008-08
期刊:
Journal of the Optical Society of America. A, Optics, image science, and vision
影响因子:
--
作者:
Duncan DD;Kirkpatrick SJ
通讯作者:
Kirkpatrick SJ
影响因子:
12.7
作者:
Korte N;Nortley R;Attwell D
通讯作者:
Attwell D
影响因子:
1.6
作者:
Bandyopadhyay, R;Gittings, AS;Durian, DJ
通讯作者:
Durian, DJ
DOI:
10.1364/josaa.14.000192
发表时间:
1997-01-01
影响因子:
1.9
作者:
Boas, DA;Yodh, AG
通讯作者:
Yodh, AG
影响因子:
5.3
作者:
Boas, David A.;Sakadzic, Sava;Carp, Stefan A.
通讯作者:
Carp, Stefan A.