Abstract
We study the optical detection of absorptive tumors in turbid tissues, using a random-walk model to describe the migration of photons in the tissue. We consider time-resolved transillumination measurements in slab-like tissues, and calculate the tranmsmitted intensity with and without the inclusion. The ratio of these quantities, defined as the measure of the detectability, is studied as a function of the inclusion size and absorption coefficient. The detectability is found to depend only on the difference between the absorptivities of the abnormality and the surrounding tissue. The nonmonotonic behavior in time of this ratio corresponds to the three different types of photon trajectories in the tissue, and its extremum points provide information which can be used to determine the optimal time window for best detection.
Original language | English |
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Title of host publication | Optical Tomography, Photon Migration, and Spectroscopy of Tissue and Model Media |
Subtitle of host publication | Theory, Human Studies, and Instrumentation |
Editors | Britton Chance, Robert R. Alfano |
Publisher | SPIE |
Pages | 851-858 |
Number of pages | 8 |
ISBN (Electronic) | 9780819417367 |
DOIs | |
State | Published - 30 May 1995 |
Event | Optical Tomography, Photon Migration, and Spectroscopy of Tissue and Model Media: Theory, Human Studies, and Instrumentation - San Jose, United States Duration: 1 Feb 1995 → 28 Feb 1995 |
Publication series
Name | Proceedings of SPIE - The International Society for Optical Engineering |
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Volume | 2389 |
ISSN (Print) | 0277-786X |
ISSN (Electronic) | 1996-756X |
Conference
Conference | Optical Tomography, Photon Migration, and Spectroscopy of Tissue and Model Media: Theory, Human Studies, and Instrumentation |
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Country/Territory | United States |
City | San Jose |
Period | 1/02/95 → 28/02/95 |
Bibliographical note
Publisher Copyright:© 2018 SPIE.
Keywords
- Detectability
- Exact Enumeration
- Random-Walk
- Transillumination
- Tumor