title: Evaluation of three effervescent agents for double-contrast upper gastrointestinal radiography.
abstract: The agent used to introduce gas into the stomach is an important factor in determining the quality of double-contrast upper gastrointestinal radiography. The efficacy of 3 effervescent agents formulated for use in double-contract upper gastrointestinal radiography was evaluated in 300 patients. Patients found 2 granular preparations (E-Z-Gas granules and Baros) easier to swallow than a powdered agent (E-Z-Gas powder). Bubble formation and flocculation of barium in the stomach were less of a problem with Baros. Differences in mucosal coating and visualization of area gastricae were not statistically significant.
mesh_terms: D001639:Bicarbonates; D002951:Citrates; D019343:Citric Acid; D003287:Contrast Media; D004064:Digestive System / Q000000981:diagnostic imaging*; D004338:Drug Combinations; D005069:Evaluation Studies as Topic; D005753:Gastric Mucosa / Q000000981:diagnostic imaging; D006801:Humans; D011208:Powders; D011859:Radiography; D017693:Sodium Bicarbonate; D013270:Stomach / Q000000981:diagnostic imaging
chemical_list: D001639:Bicarbonates; D002951:Citrates; D003287:Contrast Media; D004338:Drug Combinations; D011208:Powders; C031210:citric acid, sodium bicarbonate drug combination; D019343:Citric Acid; D017693:Sodium Bicarbonate