1. Duodenal Obstruction: Diagnosis by Gastroduodenal Manometry
Edward V. Loftus, M.D., Gianrico Farrugia, M.D., John H. Donohue, M.D., Michael Camilleri, M.D. 
Mayo Clinic Proceedings 
Volume 72, Issue 2, Pages (February 1997)
DOI: /
Copyright © 1997 Mayo Foundation for Medical Education and Research Terms and Conditions

2. Fig. 1
Gastroduodenal motility tracing, demonstrating simultaneous, prolonged contractions during fasting (left panel) and postprandial (right panel) phases. Contractions were present in duodenum but not in proximal jejunum (bottom tracing), a suggestion of mechanical obstruction in distal duodenum or proximal jejunum. Recording speed, 0.25 mm/s.
Mayo Clinic Proceedings  , DOI: ( / )
Copyright © 1997 Mayo Foundation for Medical Education and Research Terms and Conditions