1. First experiences with catheter-based intraluminal optical coherence tomography of the human upper urinary tract in vivo

    Objective Catheter-based intraluminal optical coherence tomography (OCT) with near-infrared light provides cross-sectional images of hollow organs and vessels, with a lateral resolution of 10–20 μm. We evaluated the technical success rate and demonstration of different wall layers of the human upper urinary tract (UUT) in OCT images obtained in vivo. Materials and methods The study protocol was approved by the local hospital ethics committee. The OCT probe (diameter: 0.014 in) was introduced into the UUT of 14 patients either through a cystoscope and urinary catheter, or through an uretero-renoscope to obtain single-slice cross-sectional images. OCT images were evaluated ...
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