Effectiveness of ultrasound-guided percutaneous transhepatic biliary drainage to reduce radiation exposure: A single-center experience
Fig 2
An 83-year-old woman with jaundice due to distal cholangiocarcinoma.
A. Portal phase of contrast-enhanced computed tomography scan demonstrates diffuse dilatation of intrahepatic bile ducts. B. Intercostal right lobe ultrasonography scan shows diffuse dilatation of intrahepatic bile ducts (white arrow). Note that a 21-gauge Chiba needle was inserted into the target bile duct (white asterisk). C. Under fluoroscopy guidance, a mixture of contrast and normal saline was carefully injected and the bile duct confirmed. D. An 8.5 Fr drainage catheter was inserted at the distal common bile duct level.