Optical Coherence Tomography: Advanced Modeling

Peter E. Andersen, Lars Thrane, Harold T. Yura, Andreas Tycho, Thomas Martini Jørgensen

Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

Abstract

Analytical and numerical models for describing and understanding the light propagation in samples imaged by optical coherence tomography (OCT) systems are presented. An analytical model for calculating the OCT signal based on the extended Huygens-Fresnel principle valid both for the single- and multiple-scattering regimes is derived. An advanced Monte Carlo model for calculating the OCT signal is also derived, and the validity of this model is shown through a mathematical proof based on the extended Huygens-Fresnel principle. From the analytical model, an algorithm for enhancing OCT images is developed, the so-called true-reflection algorithm in which the OCT signal may be corrected for the attenuation caused by scattering. The algorithm is verified experimentally and by using the Monte Carlo model as a numerical tissue phantom. Applications of extraction of optical properties from tissue are discussed. Finally, the Wigner phase-space distribution function is derived in a closed-form solution, which may have applications in OCT.
Original languageEnglish
Title of host publicationHandbook of Coherent-Domain Optical Methods : Biomedical Diagnostics, Environmental Monitoring, and Materials Science
EditorsValery V. Tuchin
PublisherSpringer
Publication date2013
Pages743-798
Chapter17
ISBN (Print)978-1-4614-5175-4
ISBN (Electronic)978-1-4614-5176-1
DOIs
Publication statusPublished - 2013

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