Vagus nerve stimulation (VNS) yields promising therapeutic benefits but is often limited by off-target effects. Imaging tools that reveal the fascicular organization within the nerve can be used to better direct stimulation energy to the intended target. Here, we demonstrate polarization-sensitive (PS)-OCT imaging of an intact 7.5 cm ex-vivo porcine vagus nerve. The limited OCT penetration depth was overcome by using a dual-scanning microscope configured to simultaneously acquire B-scans from the upper and lower segments of a nerve sample. Three-dimensional maps of the complex fascicular organization in these nerves were generated.
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