Monitoring of tissue thermal modification with a bundle-based full-field speckle analyzer
Applied Optics, Vol. 45, Issue 18, pp. 4480-4490 (2006)
http://dx.doi.org/10.1364/AO.45.004480
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Abstract
Speckle-contrast monitoring of laser-mediated tissue modification is examined for the specific case of delivery of speckle-modulated light from the tissue to detector (CCD camera) with a fiber-optic element (bundle). The influence of the transfer properties of a bundle-based optical system on the decorrelation rate of detected dynamic speckles is analyzed. Compared with the widely used method on the base of speckle-contrast analysis in the image plane, the considered technique is characterized by a more pronounced correlation between variations of the contrast of time-averaged speckle patterns and changes in the temperature of the modified tissue. The possibility of characterization of the modification kinetics (in particular, by the evaluation of the characteristic activation energy) using the developed speckle technique is demonstrated.
© 2006 Optical Society of America
OCIS Codes
(030.6140) Coherence and statistical optics : Speckle
(170.6930) Medical optics and biotechnology : Tissue
ToC Category:
Medical Optics and Biotechnology
History
Original Manuscript: August 15, 2005
Revised Manuscript: January 28, 2006
Manuscript Accepted: February 10, 2006
Virtual Issues
Vol. 1, Iss. 7 Virtual Journal for Biomedical Optics
Citation
Dmitry A. Zimnyakov, Alexander P. Sviridov, Liana V. Kuznetsova, Stepan A. Baranov, and Natali Yu. Ignatieva, "Monitoring of tissue thermal modification with a bundle-based full-field speckle analyzer," Appl. Opt. 45, 4480-4490 (2006)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-45-18-4480
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