Endoscopic low coherence topography measurement for upper airways and hollow samples
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 pig bronchi.
- URL: http://spiedigitallibrary.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JBOPFO000015000006066014000001&idtype=cvips&gifs=Yes
Record created on 2010-09-28, modified on 2016-08-08