[The diagnosis of cholecystitis by ultrasonic densitometry]

Ultrasound densitometry was used to determine echo density of the wall and contents of the gallbladder in normal persons and in patients suffering from cholelithiasis and chronic calculus-free cholecystitis. In patients with cholelithiasis, the gallbladder was later removed, followed by histological examination of its wall. The ultrasound and histological data were studied and compared. The highly significant differences in the echo density of the wall and contents of the gallbladder were obtained in normal persons and patients afflicted with chronic cholecystitis.