Experimental evaluation of an anisotropic scattering model of a slab geometry

被引：20

作者：

Hebden, JC

Guerrero, JJG

Chernomordik, V

Gandjbakhche, AH

机构：

[1] UCL, Dept Med Phys & Bioengn, London WC1E 6JA, England

[2] Univ Nacl Autonoma Mexico, Ctr Ciencias Aplicadas & Desarrollo Tecnol, Mexico City 04510, DF, Mexico

[3] Inst Child Hlth & Human Dev, Lab Integrat & Med Biophys, NIH, Bethesda, MD 20892 USA

来源：

OPTICS LETTERS | 2004年 / 29卷 / 21期

关键词：

D O I：

10.1364/OL.29.002518

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A model has been developed based on random walk theory that allows the diffusion of light along a principal axis to differ from that in orthogonal directions. We present expressions that describe the time-resolved intensity measured across a slab and on the surface of a semi-infinite medium for a principal axis oriented parallel or perpendicular to the surface. The model of time-resolved transmittance is compared with experimental data acquired by use of a phantom consisting of wax fibers arranged within a solid cube of resin. It is shown that a single set of optical parameters is sufficient to model the experimental measurements acquired across all three orientations of the cube. (C) 2004 Optical Society of America.

引用

收藏

页码：2518 / 2520

页数：3

相关论文

共 12 条

[1] BOUNDARY-CONDITIONS FOR DIFFUSION OF LIGHT [J].

ARONSON, R .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 1995, 12 (11) :2532-2539

[2] Optical imaging in medicine .2. Modelling and reconstruction [J].

Arridge, SR ;

Hebden, JC .

PHYSICS IN MEDICINE AND BIOLOGY, 1997, 42 (05) :841-853

[3] THE THEORETICAL BASIS FOR THE DETERMINATION OF OPTICAL PATHLENGTHS IN TISSUE - TEMPORAL AND FREQUENCY-ANALYSIS [J].

ARRIDGE, SR ;

COPE, M ;

DELPY, DT .

PHYSICS IN MEDICINE AND BIOLOGY, 1992, 37 (07) :1531-1560

[4] Effect of lateral boundaries on contrast functions in time-resolved transillumination measurements [J].

Chernomordik, V ;

Gandjbakhche, AH ;

Hebden, JC ;

Zaccanti, G .

MEDICAL PHYSICS, 1999, 26 (09) :1822-1831

[5] Photon migration through a turbid slab described by a model based on diffusion approximation .2. Theory [J].

Contini, D ;

Martelli, F ;

Zaccanti, G .

APPLIED OPTICS, 1997, 36 (19) :4587-4599

[6] Effects of anisotropic optical properties on photon migration in structured tissues [J].

Dagdug, L ;

Weiss, GH ;

Gandjbakhche, AH .

PHYSICS IN MEDICINE AND BIOLOGY, 2003, 48 (10) :1361-1370

[7] Photon migration in turbid media with anisotropic optical properties [J].

Dudko, OK ;

Weiss, GH ;

Chernomordik, V ;

Gandjbakhche, AH .

PHYSICS IN MEDICINE AND BIOLOGY, 2004, 49 (17) :3979-3989

[8] Time-dependent contrast functions for quantitative imaging in time-resolved transillumination experiments [J].

Gandjbakhche, AH ;

Chernomordik, V ;

Hebden, JC ;

Nossal, R .

APPLIED OPTICS, 1998, 37 (10) :1973-1981

[9] Anisotropic effects in highly scattering media [J].

Heino, J ;

Arridge, S ;

Sikora, J ;

Somersalo, E .

PHYSICAL REVIEW E, 2003, 68 (03) :8

[10] TIME-GATED TRANSILLUMINATION OF BIOLOGICAL TISSUES AND TISSUELIKE PHANTOMS [J].

MITIC, G ;

KOLZER, J ;

OTTO, J ;

PLIES, E ;

SOLKNER, G ;

ZINTH, W .

APPLIED OPTICS, 1994, 33 (28) :6699-6710