Association of esophageal dilatation in chest CT scan with gastroesophageal reflux disease: A case control study.

The presence of increased air bubble in the lumina of esophagus on a chest CT scan may be associated with esophageal disorders. The purpose of this study was to determine the association between the appearance of air bubbles on chest CT scan and gastroesophageal Reflux Disease (GERD). In this case-control study, thirty-two patients with endoscopically proved GERD and 32 subjects without GERD underwent chest computed tomography (CT) scanning.