Quantification of cocaine-induced cortical blood flow changes using laser speckle contrast imaging and Doppler optical coherence tomography
Applied Optics, Vol. 48, Issue 10, pp. D247-D255 (2009)
http://dx.doi.org/10.1364/AO.48.00D247
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Abstract
We present a dual-imaging technique combining laser speckle contrast imaging and spectral-domain Doppler optical coherence tomography to enable quantitative characterization of local cerebral blood flow (CBF) changes in rat cortex in response to drug stimulus (e.g., cocaine) at high spatiotemporal resolutions. To examine the utility of this new technique, animal experiments were performed to study the influences of anesthetic regimes (e.g., isoflurane, α-chloralose) on the pharmadynamic effects of acute cocaine challenge. The results showed that cocaine-evoked CBF patterns (e.g., increases in α-chloralose and decreases in isoflurane regimes) were quantitatively characterized, thus rendering it a potentially useful tool for imaging studies of brain functions.
© 2009 Optical Society of America
OCIS Codes
(110.6150) Imaging systems : Speckle imaging
(170.3340) Medical optics and biotechnology : Laser Doppler velocimetry
(170.4500) Medical optics and biotechnology : Optical coherence tomography
(170.2655) Medical optics and biotechnology : Functional monitoring and imaging
History
Original Manuscript: September 3, 2008
Revised Manuscript: January 26, 2009
Manuscript Accepted: January 31, 2009
Published: March 4, 2009
Virtual Issues
Vol. 4, Iss. 6 Virtual Journal for Biomedical Optics
Citation
Zhongchi Luo, Zhijia Yuan, Melissa Tully, Yingtian Pan, and Congwu Du, "Quantification of cocaine-induced cortical blood flow changes using laser speckle contrast imaging and Doppler optical coherence tomography," Appl. Opt. 48, D247-D255 (2009)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-48-10-D247
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