Instrumentation and design of a frequency-domain diffuse optical tomography imager for breast cancer detection

被引：177

作者：

Pogue, Brian W. ^{[1
]}

Testorf, Markus ^{[1
]}

McBride, Troy ^{[1
]}

Osterberg, Ulf ^{[1
]}

Paulsen, Keith ^{[1
]}

机构：

[1] Dartmouth Coll, Thayer Sch Engn, Hanover, NH 03755 USA

来源：

OPTICS EXPRESS | 1997年 / 1卷 / 13期

关键词：

D O I：

10.1364/OE.1.000391

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The instrument development and design of a prototype frequency-domain optical imaging device for breast cancer detection is described in detail. This device employs radio-frequency intensity modulated near-infrared light to image quantitatively both the scattering and absorption coefficients of tissue. The functioning components of the system include a laser diode and a photomultiplier tube, which are multiplexed automatically through 32 large core fiber optic bundles using high precision linear translation stages. Image reconstruction is based on a finite element solution of the diffusion equation. This tool for solving the forward problem of photon migration is coupled to an iterative optical property estimation algorithm, which uses a Levenberg-Marquardt routine with total variation minimization. The result of this development is an automated frequency-domain optical imager for computed tomography which produces quantitatively accurate images of the test phantoms used to date. This paper is a description and characterization of an automated frequency-domain computed tomography scanner, which is more quantitative than earlier systems used in diaphanography because of the combination of intensity modulated signal detection and iterative image reconstruction. (C) 1997 Optical Society of America

引用

页码：391 / 403

页数：13

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