Endoscopic Low Coherence Interferometry in upper airways

Yves Delacrétaz*, Daniel Boss, Florian Lang, Christian Depeursinge

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


We introduce Endoscopic Low Coherence Interferometry to obtain topology of upper airways through commonly used rigid endoscopes. Quantitative dimensioning of upper airways pathologies is crucial to provide maximum health recovery chances, for example in order to choose the correct stent to treat endoluminal obstructing pathologies. Our device is fully compatible with procedures used in day-to-day examinations and can potentially be brought to bedside. Besides this, the approach described here can be almost straightforwardly adapted to other endoscopy-related field of interest, such as gastroscopy and arthroscopy. The principle of the method is first exposed, then filtering procedure used to extract the depth information is described. Finally, demonstration of the method ability to operate on biological samples is assessed through measurements on ex-vivo pork bronchi.

Original languageEnglish (US)
Title of host publicationOptical Coherence Tomography and Coherence Techniques IV
StatePublished - 2009
Externally publishedYes
EventOptical Coherence Tomography and Coherence Techniques IV - Munich, Germany
Duration: Jun 14 2009Jun 17 2009

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
ISSN (Print)1605-7422


OtherOptical Coherence Tomography and Coherence Techniques IV


  • 110.1650 Coherence imaging
  • 120.3180 Interferometry
  • 170.2150 Endoscopic imaging

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Radiology Nuclear Medicine and imaging
  • Biomaterials


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