[The value of echotomographic measurement of gallbladder volume in the evaluation of its contractility].

Ultrasonographic examination of the gallbladder was performed in 2 patient groups: 20 volunteers (group I) and 20 patients with cholelithiasis (group II). Gallbladder volume was echotomographically measured before and after holagogue was administered. Dodd's ellipsoidal method was used for the elevation of gallbladder contractility.