30 April 1999 Real-time color Doppler optical coherence tomography using an autocorrelation technique
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Proceedings Volume 3598, Coherence Domain Optical Methods in Biomedical Science and Clinical Applications III; (1999); doi: 10.1117/12.347486
Event: BiOS '99 International Biomedical Optics Symposium, 1999, San Jose, CA, United States
Abstract
Color Doppler optical coherence tomography (CDOCT) is a functional extension of optical coherence tomography 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 arm of the interferometer. Image data was acquired, processed, and displayed in real time. 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 a 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.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Andrew M. Rollins, Siavash Yazdanfar, Rujchai Ung-arunyawee, Joseph A. Izatt, "Real-time color Doppler optical coherence tomography using an autocorrelation technique", Proc. SPIE 3598, Coherence Domain Optical Methods in Biomedical Science and Clinical Applications III, (30 April 1999); doi: 10.1117/12.347486; http://dx.doi.org/10.1117/12.347486
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KEYWORDS
Doppler effect

Optical coherence tomography

Doppler tomography

Real time imaging

Signal processing

Digital signal processing

Fourier transforms

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