ⓘ Cholecystography. Oral cholecystography is a radiological procedure used to visualize the gallbladder and biliary channels, developed in 1924 by American surgeo ..

                                     

ⓘ Cholecystography

Oral cholecystography is a radiological procedure used to visualize the gallbladder and biliary channels, developed in 1924 by American surgeons Evarts Ambrose Graham and Warren Henry Cole. It is usually indicated in cases of suspected gallbladder disease, and can also be used to determine or rule out the presence of intermittent obstruction of the bile ducts or recurrent biliary disease after biliary surgery.

A radiopaque cholegraphic contrast agent, usually iopanoic acid Telepaque or its sodium or calcium salt, is orally administered, which is absorbed by the intestine. This excreted material will collect in the gallbladder, where reabsorption of water concentrates the excreted contrast. Since only 10% of gallstones are radiopaque, the remaining 90% will appear as translucent on an opaque background in an abdominal X-ray.

If needed, IV cholecystography and cholangiography may be done.

Current medical practice prefers ultrasound and CT over oral cholecystography.

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