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Journal of Biomedical Optics • Open Access

Real-time swept source optical coherence tomography imaging of the human airway using a microelectromechanical system endoscope and digital signal processor

Paper Abstract

A fast-scan-rate swept laser for optical coherence tomography (OCT) is suitable to record and analyze a 3-D image volume. However, the whole OCT system speed is limited by data streaming, processing, and storage. In this case, postprocessing is a common technique. Endoscopic clinical applications prefer onsite diagnosis, which requires a real-time technique. Parallel digital signal processors were applied to stream and process data directly from a data digitizer. A real-time system with 20-kHz axial line speed, which was limited only by our swept laser scan rate, was implemented. To couple with the system speed, an endoscope based on an improved 3-D microelectromechanical motor (diameter 1.5 mm, length 9.4 mm) was developed. In vivo 3-D imaging of the human airway was demonstrated.

Paper Details

Date Published: 1 May 2008
PDF: 0 pages
J. Biomed. Opt. 13(3) 030506 doi: 10.1117/1.2938700
Published in: Journal of Biomedical Optics Volume 13, Issue 3
Show Author Affiliations
Jianping Su, Univ. of California/Irvine (United States)
Jun Zhang, Univ. of California/Irvine (United States)
Lingfeng Yu, Univ. of California/Irvine (United States)
Henri G. Colt, Irvine Medical Ctr. (United States)
Matthew Brenner, Univ. of California/Irvine (United States)
Zhongping Chen, Univ. of California/Irvine (United States)

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