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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 22 — Aug. 1, 1998
  • pp: 5337–5343

Frequency-domain fluorescent diffusion tomography: a finite-element-based algorithm and simulations

Huabei Jiang  »View Author Affiliations


Applied Optics, Vol. 37, Issue 22, pp. 5337-5343 (1998)
http://dx.doi.org/10.1364/AO.37.005337


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Abstract

We present a finite-element-based algorithm for reconstruction of fluorescence lifetime and yield in turbid media, using frequency-domain data. The algorithm is based on a set of coupled diffusion equations that describe the propagation of both excitation and fluorescent emission light in multiply scattering media. Centered on Newton’s iterative method, we implemented our algorithm by using a synthesized scheme of Marquardt and Tikhonov regularizations. A low-pass spatial filter is also incorporated into the algorithm for enhancing image reconstruction. Simulation studies using both noise-free and noisy data have been performed with the nonzero photon density boundary conditions. Our results suggest that quantitative images can be produced in terms of fluorescent lifetime and yield values and location, size, and shape of heterogeneities within a circular background region.

© 1998 Optical Society of America

OCIS Codes
(170.0170) Medical optics and biotechnology : Medical optics and biotechnology
(170.3010) Medical optics and biotechnology : Image reconstruction techniques
(170.3650) Medical optics and biotechnology : Lifetime-based sensing
(170.3660) Medical optics and biotechnology : Light propagation in tissues
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(170.6960) Medical optics and biotechnology : Tomography

History
Original Manuscript: January 5, 1998
Revised Manuscript: April 20, 1998
Published: August 1, 1998

Citation
Huabei Jiang, "Frequency-domain fluorescent diffusion tomography: a finite-element-based algorithm and simulations," Appl. Opt. 37, 5337-5343 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-22-5337

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