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An endoscopic optical coherence tomography (OCT) system based on a microelectromechanical mirror to facilitate
lateral light scanning is described. The front-view OCT scope, adapted to the instrument channel
of a commercial endoscopic sheath, allows real-time cross-sectional imaging of living biological tissue via direct
endoscopic visual guidance. The transverse and axial resolutions of the OCT scope are roughly 20 and
10.2 μm, respectively. Cross-sectional images of 500 x 1000 pixels covering an area of 2.9 mm x 2.8 mm can
be acquired at ~5 frames/s and with nearly 100-dB dynamic range. Applications in thickness measurement
and bladder tissue imaging are demonstrated.
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Full paper not available from outside CMU
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