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Proceedings Paper

Perturbation Monte-Carlo-based derivative estimation for imaging transport regime tissue optical properties
Author(s): Yalavarthy Phaneendra Kumar; Kirtish Karlekar; Ram M. Vasu
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Paper Abstract

In this work we show that for imaging tissue with low scattering background, reconstruction algorithms using derivatives calculated through perturbation Monte-Carlo method worked well whereas diffusion equation based methods failed. An easy way to estimate the Jacobian using analytical expression obtained from perturbation Monte-Carlo method is demonstrated. We have successfully reconstructed both absorption- and scattering inhomogeneities in objects, which fall under transport equation regime. Experimental data gathered from tissue-equivalent phantoms with low-scattering coefficient background and absorption and/or scattering inhomogeneities are reconstructed using the above method.

Paper Details

Date Published: 29 July 2004
PDF: 8 pages
Proc. SPIE 5486, ALT'03 International Conference on Advanced Laser Technologies: Biomedical Optics, (29 July 2004); doi: 10.1117/12.571442
Show Author Affiliations
Yalavarthy Phaneendra Kumar, Indian Institute of Science (India)
Kirtish Karlekar, Indian Institute of Science (India)
Ram M. Vasu, Indian Institute of Science (India)

Published in SPIE Proceedings Vol. 5486:
ALT'03 International Conference on Advanced Laser Technologies: Biomedical Optics
Ruikang K. Wang; Jeremy C. Hebden; Alexander V. Priezzhev; Valery V. Tuchin, Editor(s)

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