<unk> ,<unk>  hepatic cholangiogram <unk>  is a radiological technique used to visualize the anatomy of the biliary tract. A contrast medium is injected into a bile duct in the liver, after which X-rays are taken. It allows access to the biliary tree in cases where endoscopic retrograde cholangiopancreatography has been unsuccessful. Initially reported in 1937, the procedure became popular in 1952.
Percutaneous transhepatic cholangiography
Intravenous cholangiography
Splenic aspiration
Magnetic resonance cholangiopancreatography
Liver biopsy
Biliary endoscopic sphincterotomy
Endoscopic retrograde cholangiopancreatography
Cholecystography