Range technique in scattering medium using a needle-fiber optical coherence tomography system

被引：2

作者：

Li, Tingyu ^{[1
]}

Nitta, Kouichi ^{[1
]}

Matoba, Osamu ^{[1
]}

Yoshimura, Takeaki ^{[1
]}

机构：

[1] Kobe Univ, Fac Engn, Dept Syst & Comp Engn, Nada Ku, Kobe, Hyogo 6578501, Japan

来源：

OPTICAL REVIEW | 2006年 / 13卷 / 04期

关键词：

needle-fiber system; range technique; optical coherence tomography; Monte Carlo simulation; epidural anesthesia;

D O I：

10.1007/s10043-006-0201-8

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A needle-fiber optical coherence tomography (OCT) system designed for guiding epidural anesthesia to a target is presented. In the preliminary experiment, a desired target in tofu as a strong scattering medium can be monitored over a sufficient range of several millimeters within a short measuring time. The axial resolution is 21 mu m. In order to investigate the ranging performance, the relation between background noise levels and focus-scattering properties in a confocal optical system is numerically studied by use of Monte Carlo technique. Numerical results indicate that an appropriate focal length of the lens attached to the fiber should be used to separate the OCT signal from strong noise in strongly scattered medium. (c) 2006 The Optical Society of Japan.

引用

页码：201 / 206

页数：6

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