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Endoscopic optical coherence tomography based on a microelectromechanical mirror

  • Carnegie Mellon University

Research output: Contribution to journalArticlepeer-review

294 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)1966-1968
Number of pages3
JournalOptics Letters
Volume26
Issue number24
DOIs
StatePublished - Dec 15 2001

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