"Upper GI studies are a fluoroscopic evaluation of the oesophagus, stomach, and duodenum."
"There are a number of indications for an upper GI study, including:"
"Upper GI studies are normally performed with barium, but water-soluble contrast may be used if there is a concern for perforation."
"single contrast upper GI technique"
"double contrast upper GI technique coming soon"
"double contrast upper GI technique coming soon"
"There are a number of indications for an upper GI study, including:"