A small device that patients can swallow in any outpatient setting without being under sedation should allow for earlier detection of Barrett’s esophagus (BE) and thereby prevent the development of esophageal adenocarcinoma (EAC), which can arise from these premalignant lesions.
https://www.medscape.com/viewarticle/891588
Swallowable Balloon Device Detects Barrett's Esophagus