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Piezoelectric transducer based miniature catheter for ultrahigh speed endoscopic optical coherence tomography

Author(s)
Tsai, Tsung-Han; Potsaid, Benjamin M.; Kraus, Martin Franz Georg; Liu, Jonathan Jaoshin; Zhou, Chao; Hornegger, Joachim; Fujimoto, James G.; ... Show more Show less
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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Abstract
We developed a piezoelectric transducer (PZT) based miniature catheter with an outer diameter of 3 mm for ultrahigh speed endoscopic optical coherence tomography (OCT) using Fourier domain modelocked (FDML) laser at a 480 kHz axial scan rate. The miniaturized PZT bender actuates a fiber to provide high scanning speed. The side-viewing probe can be pulled back for a long distance to acquire three-dimensional (3D) dataset covering a large area on the specimen. Operating with a high speed data acquisition (DAQ) system, OCT imaging with 6.5 mm imaging range, 10 μm axial resolution, 20 μm lateral resolution, and frame rate of 480 frames per second (fps) is demonstrated.
Date issued
2011-01
URI
http://hdl.handle.net/1721.1/71929
Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science; Massachusetts Institute of Technology. Research Laboratory of Electronics
Journal
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV
Publisher
SPIE
Citation
Tsai, Tsung-Han et al. “Piezoelectric Transducer Based Miniature Catheter for Ultrahigh Speed Endoscopic Optical Coherence Tomography.” Proc. SPIE 7889, 788919 (2011). © 2011 Copyright SPIE
Version: Final published version
ISSN
0277-786X

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