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Proceedings Paper

Functional imaging by dynamic speckle in digital holographic optical coherence imaging
Author(s): Kwan Jeong; John J. Turek; David D. Nolte
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Paper Abstract

Digital holographic optical coherence imaging (DHOCI) is a full-frame coherence-gated imaging approach that uses a CCD camera to record and reconstruct a digital hologram from inside tissue. Our recording of digital holograms at the optical Fourier plane has advantages for diffuse targets compared with Fresnel off-axis digital holography. DHOCI is capable of performing functional imaging by using dynamic image speckle as a contrast agent to locate regions of high metabolic activity characterized by high cellular motility. We show strong dynamic speckle difference between three metabolic states of a tumor, and demonstrate that functional imaging in DHOCI can capture motility information with high contrast. We apply functional imaging to track the effect on cell motility by temperature changes or cytoskeletal drugs.

Paper Details

Date Published: 7 February 2007
PDF: 9 pages
Proc. SPIE 6429, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine XI, 64291V (7 February 2007); doi: 10.1117/12.703702
Show Author Affiliations
Kwan Jeong, Purdue Univ. (United States)
John J. Turek, Purdue Univ. (United States)
David D. Nolte, Purdue Univ. (United States)

Published in SPIE Proceedings Vol. 6429:
Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine XI
James G. Fujimoto; Joseph A. Izatt; Valery V. Tuchin, Editor(s)

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