Gastroduodenal Manometry
Gastroduodenal manometry is a test of the pressure changes that occur within
the stomach and upper intestine during digestion.
A pressure-sensitive tube is placed with an endoscope that is passed into
the small intestine. The position of the manometry testing tube is checked
with X-ray, and the endoscope is then removed. The tube remains connected
through the nose for one or two hours while a computer detects and analyzes
the muscular contractions.