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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 2 — Jan. 19, 2009
  • pp: 894–905

A non-contact method and instrumentation to monitor renal ischemia and reperfusion with optical spectroscopy

Rajesh N. Raman, Christopher D. Pivetti, Dennis L. Matthews, Christoph Troppmann, and Stavros G. Demos  »View Author Affiliations

Optics Express, Vol. 17, Issue 2, pp. 894-905 (2009)

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The potential of NADH autofluorescence as an in vivo intrinsic optical signature to monitor tissue metabolism is well recognized and supported by experimental results mainly in animal models. In this work, we propose a non-contact implementation of this method using large area excitation and employing a normalization method to account for non-metabolic signal changes. Proof of principle in vivo experiments were carried out using an autofluorescence imaging experimental system and a rat renal ischemia model. A hand-held fiber-optic probe was utilized to test the ability of the signal normalization method to address operational conditions associated with the translation of this method to a clinical setting. Preliminary pre-clinical in vivo test of the probe system was carried out using the same rat model.

© 2009 Optical Society of America

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(170.3890) Medical optics and biotechnology : Medical optics instrumentation
(170.6510) Medical optics and biotechnology : Spectroscopy, tissue diagnostics
(300.6360) Spectroscopy : Spectroscopy, laser

ToC Category:
Medical Optics and Biotechnology

Original Manuscript: November 20, 2008
Revised Manuscript: January 6, 2009
Manuscript Accepted: January 7, 2009
Published: January 12, 2009

Virtual Issues
Vol. 4, Iss. 3 Virtual Journal for Biomedical Optics

Rajesh N. Raman, Christopher D. Pivetti, Dennis L. Matthews, Christoph Troppmann, and Stavros G. Demos, "A non-contact method and instrumentation to monitor renal ischemia and reperfusion with optical spectroscopy," Opt. Express 17, 894-905 (2009)

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