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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 43, Iss. 31 — Nov. 1, 2004
  • pp: 5772–5777

Hyperosmotic chemical agent’s effect on in vivo cerebral blood flow revealed by laser speckle

Haiying Cheng, Qingming Luo, Shaoqun Zeng, Shangbin Chen, Weihua Luo, and Hui Gong  »View Author Affiliations


Applied Optics, Vol. 43, Issue 31, pp. 5772-5777 (2004)
http://dx.doi.org/10.1364/AO.43.005772


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Abstract

We investigated the influence of a hyperosmotic agent (glycerol) on the normal physiological function of tissue by applying the glycerol in vitro and in vivo to rabbit dura mater to assess the changes in the tissue’s optical properties. We used a laser speckle imaging technique to study the effect of epidurally applied glycerol on resting cerebral blood flow (CBF). Our results showed that resting CBF decreased as the transparency of the dura mater increased. The challenges for the design of an optical clearing technique were not only the clearing effects and the duration of the action of the chemical agents but also the influence of the glycerol on the tissue’s normal physiological function.

© 2004 Optical Society of America

OCIS Codes
(120.3890) Instrumentation, measurement, and metrology : Medical optics instrumentation
(120.6150) Instrumentation, measurement, and metrology : Speckle imaging
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(170.5380) Medical optics and biotechnology : Physiology
(280.2490) Remote sensing and sensors : Flow diagnostics

History
Original Manuscript: December 15, 2003
Revised Manuscript: June 4, 2004
Manuscript Accepted: August 3, 2004
Published: November 1, 2004

Citation
Haiying Cheng, Qingming Luo, Shaoqun Zeng, Shangbin Chen, Weihua Luo, and Hui Gong, "Hyperosmotic chemical agent’s effect on in vivo cerebral blood flow revealed by laser speckle," Appl. Opt. 43, 5772-5777 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-31-5772

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