Transmission measurements on tissue-like phantoms: a simple system for optical parameters determination

被引：1

作者：

Colasanti, A ^{[1
]}

Kisslinger, A ^{[1
]}

Liuzzi, R ^{[1
]}

Quarto, M ^{[1
]}

Riccio, P ^{[1
]}

Roberti, G ^{[1
]}

Villani, F ^{[1
]}

机构：

[1] Univ Naples Federico II, Fac Med & Surg, DBPCM, I-80131 Naples, Italy

来源：

PHOTON PROPAGATION IN TISSUES III, PROCEEDINGS OF | 1998年 / 3194卷

关键词：

transillumination; tissue-like phantom; collimated trasmission;

D O I：

10.1117/12.301091

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

In last years NIR radiation was extensively used to detect targets hidden in optically turbid media. We performed transillumination measurements on tissue-like phantoms (absorbing objects embedded in Intralipid and black ink solutions) to determine the intensity of transmitted radiation. The experimental apparatus include a diode laser (lambda(emiss) = 820 nm, CW power = 250 mW), a detection fiber (diameter = 600 mm), a PMT and a Digital Signal Analyser (bandwidth = 1 GHz). At variance of very complex systems that reject highly scattered photons by time-resolved detection, the developed system performs this selection by collimation. The experimental data were compared with diffusion approximation predictions.

引用

页码：471 / 477

页数：7