Absorptivity contrast in transillumination imaging of tissue abnormalities

被引：31

作者：

Gandjbakhche, AH ^{[1
]}

Bonner, RF ^{[1
]}

Nossal, R ^{[1
]}

Weiss, GH ^{[1
]}

机构：

[1] NIH,PHYS SCI LAB,DIV COMP RES & TECHNOL,BETHESDA,MD 20892

来源：

APPLIED OPTICS | 1996年 / 35卷 / 10期

关键词：

random walks; optical imaging; detectability; optical contrast;

D O I：

10.1364/AO.35.001767

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We calculate the time-resolved flux of photons transmitted across an optically turbid slab containing a partially absorbing inclusion. An analytical expression is obtained for the flux at a detector positioned opposite a point source (at a distance equal to the thickness of the slab) when the center of the inclusion lies on the line connecting those points. The calculation employs a discrete-time lattice random-walk model of photon transport. The resulting expression is used to assess the affects of time resolution on the detectability of the inclusion.

引用

页码：1767 / 1774

页数：8

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