A wide field-of-view scanning endoscope for whole anal canal imaging.

Biomed Opt Express

Electrical Engineering, California Institute of Technology, Pasadena, CA 91125, USA.

Published: February 2015

We report a novel wide field-of-view (FOV) scanning endoscope, the AnCam, which is based on contact image sensor (CIS) technology used in commercialized business card scanners. The AnCam can capture the whole image of the anal canal within 10 seconds with a resolution of 89 μm, a maximum FOV of 100 mm × 120 mm, and a depth-of-field (DOF) of 0.65 mm at 5.9 line pairs per mm (lp/mm). We demonstrate the performance of the AnCam by imaging the entire anal canal of pigs and tracking the dynamics of acetowhite testing. We believe the AnCam can potentially be a simple and convenient solution for screening of the anal canal for dysplasia and for surveillance in patients following treatment for anal cancer.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4354600PMC
http://dx.doi.org/10.1364/BOE.6.000607DOI Listing

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