High Resolution Optical Imaging of Barrett's Esophagus Using Nvision Volumetric Laser Endomicroscopy (VLE)

Exclusion Criteria

• •Patients on anticoagulation undergoing high risk procedures in accordance to American Society For Gastrointestinal Endoscopy (ASGE) guideline for the management of antithrombotic agents for endoscopic procedures (2009).
• •Patients with esophageal varices that preclude biopsies.
• •Presence of an esophageal mass that precludes full distention of the balloon from the Nvision balloon guide sheath.
• •Patients with esophageal strictures that would prevent adequate expansion of the balloon from the Nvision balloon guide sheath.
• •Patients with known inflammatory disease, esophageal tears or ulcers, which would prohibit full distention of the balloon from the Nvision balloon guide sheath.
• •Patients with known eosinophilic esophagitis.
• •Patients that are pregnant.
• •Patients with a history of hemostasis disorders.