1. Unsedated imaging of human upper GI tract using tethered capsule endomicroscopy

    Unsedated imaging of human upper GI tract using tethered capsule endomicroscopy

    Background and Aims In order to overcome limitations of endoscopy, we have integrated a microscopic imaging technology into a tethered capsule that can be swallowed. This new technology, which we term tethered capsule endomicroscopy, provides microscopic information from the entire of esophagus as the pill passes through gastrointestinal (GI) tract. Methods Our tethered capsule endomicroscope implements a second-generation, high-speed form of optical coherence tomography termed optical frequency domain imaging that produces microstructural images with a resolution of 30x30x10μm. The capsule has a dimension of 11x25mm and is connected to 160mm long and 0.8mm thin, flexible tether. Unsedated subjects ...

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