Intraluminal fiber-optic Doppler imaging catheter for structural and functional coherence tomography

被引：28

作者：

Li, XD

Ko, TH

Fujimoto, JG

机构：

[1] MIT, Elect Res Lab, Cambridge, MA 02139 USA

[2] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA

来源：

OPTICS LETTERS | 2001年 / 26卷 / 23期

关键词：

D O I：

10.1364/OL.26.001906

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We describe a miniature fiber-optic Doppler imaging catheter for integrated functional and structural optical coherence tomography (OCT) imaging. The Doppler catheter can map blood flow within a vessel as well as image vessel wall structures. A prototype Doppler catheter has been developed and demonstrated for measuring the intraluminal velocity profile in a vessel phantom (conduit). A simple mathematical model is demonstrated to estimate the total flow rate. This estimation technique also enables the spatial range of flow measurements to be extended by approximately two times the normal OCT image-penetration depth. The Doppler OCT catheter could be a powerful device for cardiovascular imaging. (C) 2001 Optical Society of America.

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页码：1906 / 1908

页数：3

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