[Instrumental methods for studying the pancreaticobiliary system].

Ultrasonic monitoring was conducted in patients with chronic cholecystitis, pancreatitis (n = 186) to study contractile and functional activities of the gallbladder, pancreas, duodenum. The motor and evacuatory function of the gallbladder and pancreas was found out to be dependable upon the phase dyskinesias of duodenum. An increased pressure in duodenal cavity tends to impair the processes of intracavitary digestion and motor and evacuatory function of the gallbladder, pancreas, and to affect the phase outflow of bile and pancreatic juice.