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Due to the small volume of incipient Pathological Cells, the conventional imaging methods cannot effectively diagnose early-stage cytopathic effect. Since the spatial resolution of optical coherence tomography (OCT) can reach the magnitude of micron, and if OCT probe possesses the characteristic of small fabric and nice flexibility in order to easily enter human body, OCT probe can detect the cytopathic effect in a very early-stage. So, this article first introduces some existent common-path OCT system and then compares the advantages and the disadvantages of each CP-EOCT. Finally, this article mainly researches on a new common-path Endoscopic OCT (CP-EOCT) which possesses the advantages of small volume and high flexibility.
Date of Conference: 21-23 April 2012