Hand scanning optical coherence tomography imaging using encoder feedback

Opt Lett. 2014 Dec 15;39(24):6807-10. doi: 10.1364/OL.39.006807.

Abstract

We present a new method for generating micron-scale OCT images of interstitial tissue with a hand scanning probe and a linear optical encoder that senses probe movement relative to a fixed reference point, i.e., tissue surface. Based on this approach, we demonstrate high resolution optical imaging of biological tissues through a very long biopsy needle. Minor artifacts caused by tissue noncompliance are corrected using a software algorithm which detects the simple repetition of the adjacent A-scans. This hand-scanning OCT imaging approach offers the physician the freedom to access imaging sites of interest repeatedly.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Algorithms
  • Animals
  • Feedback*
  • Image Processing, Computer-Assisted
  • Tomography, Optical Coherence / instrumentation*