Ultrahigh speed endoscopic optical coherence tomography using micro-motor imaging catheter and VCSEL technology
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Fujimoto_Ultrahigh speed.pdf
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2.06 MB
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Checksum (MD5)
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Author(s)
Tsai, Tsung-Han
Tao, Yuankai K.
Potsaid, Benjamin M.
Jayaraman, Vijaysekhar
Kraus, Martin Franz Georg
Heim, Peter J. S.
Hornegger, Joachim
Mashimo, Hiroshi
Cable, Alex E.
Fujimoto, James G.
Date Issued
March 2013
Journal
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVII
Publisher
SPIE
Citation
Tsai, Tsung-Han, Yuankai K. Tao, Benjamin M. Potsaid, Vijaysekhar Jayaraman, Martin F. Kraus, Peter J. S. Heim, Joachim Hornegger, Hiroshi Mashimo, Alex E. Cable, and James G. Fujimoto. “Ultrahigh Speed Endoscopic Optical Coherence Tomography Using Micro-Motor Imaging Catheter and VCSEL Technology.” Edited by James G. Fujimoto, Joseph A. Izatt, and Valery V. Tuchin. Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVII (March 20, 2013). (SPIE proceedings; Vol. 8571).
Version
Final published version
Abstract
We developed a micro-motor based miniature catheter with an outer diameter of 3mm for ultrahigh speed endoscopic optical coherence tomography (OCT) using vertical cavity surface-emitting laser (VCSEL) at a 1MHz axial scan rate. The micro-motor can rotate a micro-prism at 1,200-72,000rpm (corresponding to 20- 1,200fps) with less than 5V driving voltage to provide fast and stable scanning, which is not sensitive to the bending of the catheter. 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. VCSEL provides high a-line rate to support dense sampling under high frame rate operation. With the use of a C++ based high speed data acquisition (DAQ) system, in vivo three-dimensional OCT imaging in rabbit GI tract with 1.6mm depth range, 11μm axial resolution, 8μm lateral resolution, and frame rate of 400fps is demonstrated.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Research Laboratory of Electronics
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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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DOI of Published Version
https://doi.org/10.1117/12.2006952
