Abstract
Background: Radial optical coherence tomography (ROCT) permits high-resolution, real-time, infrared-generated radial imaging of tissue. Resolution is approximately 10 mm and the penetration depth is about 1.5 mm. Only few studies are so far published on the use of OCT in the investigation of the common bile duct (CBD). Recently, a new linear-array OCT (LOCT) has been proposed only for experimental use; compared with ROCT, LOCT permits a higher resolution whit a similar depth of penetration. Aim: To evaluate the accuracy of LOCT in the detection of the normal CBD layers' structure and to compare ROCT and LOCT images of the CBD wall structure.
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