1 November 2010 Endoscopic low-coherence topography measurement for upper airways and hollow samples
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Abstract
To evaluate the severity of airway pathologies, quantitative dimensioning of airways is of utmost importance. Endoscopic vision gives a projective image and thus no true scaling information can be directly deduced from it. In this article, an approach based on an interferometric setup, a low-coherence laser source and a standard rigid endoscope is presented, and applied to hollow samples measurements. More generally, the use of the low-coherence interferometric setup detailed here could be extended to any other endoscopy-related field of interest, e.g., gastroscopy, arthroscopy and other medical or industrial applications where tri-dimensional topology is required. The setup design with a multiple fibers illumination system is presented. Demonstration of the method ability to operate on biological samples is assessed through measurements on ex vivo pig bronchi.
© (2010) Society of Photo-Optical Instrumentation Engineers (SPIE)
Yves Delacrétaz, Etienne Shaffer, Nicolas Pavillon, Jonas Kuhn, Florian Lang, Christian D. Depeursinge, "Endoscopic low-coherence topography measurement for upper airways and hollow samples," Journal of Biomedical Optics 15(6), 066014 (1 November 2010). https://doi.org/10.1117/1.3512218 . Submission:
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