Detection Of Neoplastic Tissue in Barrett's Esophagus With In vivO Probe-based Confocal Endomicroscopy

"Imaging procedures (pCLE) and (NBI) - All patients undergo both procedures back to back by two endoscopists, blinded to each other, in randomized order.~Procedure 1: Standard endoscopic procedure The patient receives white light endoscopy (WLE) examination. All visible lesions are noted and photographed. No biopsy is taken until both procedures are complete.~Procedure 2: NBI endoscopic procedure The patient receives a NBI endoscopy examination. All visible and NBI abnormal lesions are noted and photographed.~After both procedures are complete and all sites are unblinded to both endoscopists. pCLE with Cellvizio and physical biopsies are performed at all sites plus 4 quadrant sites."