Inclusion Criteria:  All patients aged 18+ diagnosed with Barrett's esophagus with confirmed histologic dysplasia or intra-mucosal cancer undergoing surveillance after EET Patients who have achieved CE-IM on at least one surveillance endoscopy following EET All subjects must have given signed, informed consent prior to registration in the study  Exclusion Criteria:  All patients who are unable or unwilling to give consent will not be included in the study All patients deemed to have refractory BE despite EET Patients who are pregnant, vulnerable populations such as prisoners, life expectancy < 1 year based on concurrent comorbidities, coagulopathy with INR > 1.5 that cannot be reversed, thrombocytopenia with platelets < 125,000 that cannot be corrected with blood products, unable to safely undergo elective endoscopy due to current comorbidities, and inability to pass standard endoscope will not be included in the study