Biomaterial Database

Pre-operative ultrasound measurement of bile duct diameter: basis for selective cholangiography. 1990

D R Hunt, and L Reiter, and A J Scott

St George Hospital, Kogarah, New South Wales, Australia.

In this prospective study, prior to cholecystectomy, the diameter of the common hepatic duct was measured; duct size was then compared with probability of finding stones at operation. Of 115 patients entering the study, 36 had stones removed from the common duct at the time of cholecystectomy but only three (8%) were demonstrated by ultrasonography. No stones were found in ducts less than or equal to 3 mm in size (31% patients). Only two of 26 patients with ducts measuring 4 mm had stones. As duct size increased, so did the probability of stones and all patients with ducts greater than or equal to 9 mm in diameter had stones. It is concluded that pre-operative ultrasound provides a reliable basis for a policy of selective cholangiography.

UI	MeSH Term	Description	Entries
D007430	Intraoperative Care	Patient care procedures performed during the operation that are ancillary to the actual surgery. It includes monitoring, fluid therapy, medication, transfusion, anesthesia, radiography, and laboratory tests.	Care, Intraoperative
D011300	Preoperative Care	Care given during the period prior to undergoing surgery when psychological and physical preparations are made according to the special needs of the individual patient. This period spans the time between admission to the hospital to the time the surgery begins. (From Dictionary of Health Services Management, 2d ed)	Care, Preoperative,Preoperative Procedure,Preoperative Procedures,Procedure, Preoperative,Procedures, Preoperative
D011336	Probability	The study of chance processes or the relative frequency characterizing a chance process.	Probabilities
D002758	Cholangiography	An imaging test of the BILIARY TRACT in which a contrast dye (RADIOPAQUE MEDIA) is injected into the BILE DUCT and x-ray pictures are taken.	Cholangiographies
D002763	Cholecystectomy	Surgical removal of the GALLBLADDER.	Cholecystectomies
D002769	Cholelithiasis	Presence or formation of GALLSTONES in the BILIARY TRACT, usually in the gallbladder (CHOLECYSTOLITHIASIS) or the common bile duct (CHOLEDOCHOLITHIASIS).	Gallstone Disease,Cholelithiases,Gallstone Diseases
D006500	Hepatic Duct, Common	Predominantly extrahepatic bile duct which is formed by the junction of the right and left hepatic ducts, which are predominantly intrahepatic, and, in turn, joins the cystic duct to form the common bile duct.	Common Hepatic Duct,Hepatic Duct,Common Hepatic Ducts,Duct, Common Hepatic,Duct, Hepatic,Ducts, Common Hepatic,Ducts, Hepatic,Hepatic Ducts,Hepatic Ducts, Common
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014463	Ultrasonography	The visualization of deep structures of the body by recording the reflections or echoes of ultrasonic pulses directed into the tissues. Use of ultrasound for imaging or diagnostic purposes employs frequencies ranging from 1.6 to 10 megahertz.	Echography,Echotomography,Echotomography, Computer,Sonography, Medical,Tomography, Ultrasonic,Ultrasonic Diagnosis,Ultrasonic Imaging,Ultrasonographic Imaging,Computer Echotomography,Diagnosis, Ultrasonic,Diagnostic Ultrasound,Ultrasonic Tomography,Ultrasound Imaging,Diagnoses, Ultrasonic,Diagnostic Ultrasounds,Imaging, Ultrasonic,Imaging, Ultrasonographic,Imaging, Ultrasound,Imagings, Ultrasonographic,Imagings, Ultrasound,Medical Sonography,Ultrasonic Diagnoses,Ultrasonographic Imagings,Ultrasound, Diagnostic,Ultrasounds, Diagnostic