AN IMPROVED DESIGN FOR A STABLE AND REPRODUCIBLE PHANTOM MATERIAL FOR USE IN NEAR-INFRARED SPECTROSCOPY AND IMAGING

被引：139

作者：

FIRBANK, M ^{[1
]}

ODA, M ^{[1
]}

DELPY, DT ^{[1
]}

机构：

[1] HAMAMATSU PHOTON KK, CENT RES LAB, HAMAKITA, SHIZUOKA 434, JAPAN

来源：

PHYSICS IN MEDICINE AND BIOLOGY | 1995年 / 40卷 / 05期

关键词：

D O I：

10.1088/0031-9155/40/5/016

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

In this note, we describe an improved phantom material for use in near-infrared spectroscopy and imaging. The material consists of a clear epoxy resin with absorbing dyes and amorphous silica spheres as scattering particles. It is possible to calculate the scattering coefficient and angular scattering distribution of the material from Mie theory, using the known size and refractive index of the silica spheres together with the measured refractive index of the resin (similar to 1.56). We show a good agreement between prediction and experimental measurements. The scattering properties of the material closely match those of tissue in the near-infrared wavelength region, having an anisotropy factor, g, of approximately 0.93. The absorption coefficient of the epoxy is low (similar to 0.001 mm(-1)), and addition of the dyes produces an absorption coefficient that covers the same range as that of tissue.

引用

页码：955 / 961

页数：7

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