Navicam for Detection of Barrett's Esophagus

Inclusion Criteria

* Adults greater than or equal to 22 years of age with or without Barrett's Esophagus
* All Patients:

  o Have had an endoscopy within 1 year of baseline enrollment
* Patients with Barrett's Esophagus:

  * Presence of at least 1cm of salmon colored mucosa with corresponding biopsies showing intestinal metaplasia who are treatment naïve and undergoing surveillance Or
  * Chronic Gastro Esophageal Reflux Disease (GERD) patients with at least 3 additional risk factors that meet Barrett's Esophagus screening criteria per latest clinical guidelines

Exclusion Criteria

* Inability to comprehend or read the consent form
* Have an oropharynx, esophageal, or gastro-esophageal tumor
* Ongoing symptoms of dysphagia
* Presence of active clinically significant stricture
* History of stricture requiring dilation
* Presence of pacemaker or implanted cardiac defibrillator
* History of esophageal surgery with the exception of fundoplication
* Pregnancy
* History of surgery or obstructive process of the small bowel
* BMI \> 38