Real time color Doppler optical coherence tomography using an autocorrelation technique

被引：6

作者：

Rollins, AM ^{[1
]}

Yazdanfar, S ^{[1
]}

Ung-arunyawee, R ^{[1
]}

Izatt, JA ^{[1
]}

机构：

[1] Case Western Reserve Univ, Dept Biomed Engn, Cleveland, OH 44106 USA

来源：

COHERENCE DOMAIN OPTICAL METHODS IN BIOMEDICAL SCIENCE AND CLINICAL APPLICATIONS III, PROCEEDINGS OF | 1999年 / 3598卷

关键词：

optical coherence tomography (OCT); laser Doppler velocimetry; real time imaging;

D O I：

10.1117/12.347486

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Color Doppler optical coherence tomography (CDOCT) is a functional extension of optical coherence tomograph that can image flow in turbid media. We have developed a CDOCT system capable of imaging flow in real time. Doppler processing of the analog signal is accomplished in hardware in the time domain using a novel autocorrelation technique. This Doppler processing method was implemented on a high speed OCT system employing a rapid scanning optical delay line in the reference arm of the interferometer. Image data was acquired, processed, and displayed in realtime. We have demonstrated, for the first time, imaging of bi-directional flow with CDOCT in real time in a tissue-simulating phantom consisting of intralipid solution flowing in glass capillaries submerged in intralipid solution. Issues of velocity resolution, imaging speed, and range of velocity measurement are discussed, as well as potential applications of real-time CDOCT.

引用

页码：168 / 176

页数：9

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