title: The effect of barium suspension viscosity on the delineation of areae gastricae.
abstract: The viscosity of a barium suspension is an important and controllable variable that influences the quality of mucosal detail demonstrated by double-contrast upper gastrointestinal examination. High-density barium suspensions show a notable viscosity response to seemingly trivial changes in the amount of water added. A double-blind trial involving 600 patients used E-Z-HD of the same batch number suspended with 65-70 ml water. Overall, areae gastricae covering at least 25% of the stomach surface were seen in 68.3%; no or minimal areae gastricae were seen in 31.7%. The corresponding figures for the suspension of optimal viscosity were 80% and 20%, respectively.
mesh_terms: D001466:Barium Sulfate; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D005260:Female; D005753:Gastric Mucosa / Q000000981:diagnostic imaging*; D005756:Gastritis / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D010437:Peptic Ulcer / Q000000981:diagnostic imaging; D011859:Radiography; D013276:Stomach Ulcer / Q000000981:diagnostic imaging; D014783:Viscosity; D014867:Water
chemical_list: D014867:Water; D001466:Barium Sulfate