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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 25 — Dec. 7, 2009
  • pp: 22341–22350

Optical monitoring of oxygen tension in cortical microvessels with confocal microscopy

Mohammad A. Yaseen, Vivek J. Srinivasan, Sava Sakadžić, Weicheng Wu, Svetlana Ruvinskaya, Sergei A. Vinogradov, and David A. Boas  »View Author Affiliations


Optics Express, Vol. 17, Issue 25, pp. 22341-22350 (2009)
http://dx.doi.org/10.1364/OE.17.022341


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Abstract

Evaluating cerebral oxygenation is of critical importance for the understanding of brain function and several neuropathologies. Although several techniques exist for measuring cerebral oxygenation in vivo, the most widely accepted techniques offer limited spatial resolution. We have developed a confocal imaging system for minimally invasive measurement of oxygen tension (pO2) in cerebral microvessels with high spatial and temporal resolution. The system relies on the phosphorescence quenching method using exogenous porphyrin-based dendritic oxygen probes. Here we present high-resolution phosphorescence images of cortical microvasculature and temporal pO2 profiles from multiple locations in response to varied fraction of inspired oxygen and functional activation.

© 2009 OSA

OCIS Codes
(170.1470) Medical optics and biotechnology : Blood or tissue constituent monitoring
(170.3650) Medical optics and biotechnology : Lifetime-based sensing
(180.1790) Microscopy : Confocal microscopy

ToC Category:
Medical Optics and Biotechnology

History
Original Manuscript: September 4, 2009
Revised Manuscript: October 18, 2009
Manuscript Accepted: October 22, 2009
Published: November 23, 2009

Virtual Issues
Vol. 5, Iss. 1 Virtual Journal for Biomedical Optics

Citation
Mohammad A. Yaseen, Vivek J. Srinivasan, Sava Sakadžić, Weicheng Wu, Svetlana Ruvinskaya, Sergei A. Vinogradov, and David A. Boas, "Optical monitoring of oxygen tension in cortical microvessels with confocal microscopy," Opt. Express 17, 22341-22350 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-25-22341


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