Hepatic cholangiopancreatography

Percutaneous transhepatic cholangiography (PTC): use a puncture needle with a plastic tube sheath or a Chiba fine puncture needle, from the right axillary midline or anterior approach, under the guidance of X-ray television or B-mode ultrasound monitoring , Puncture into the intrahepatic bile duct, and then inject contrast agent can clearly show the bile duct inside and outside the liver, can understand the lesion location, extent and scope of the bile duct, which helps to distinguish jaundice. It is mainly used in patients with obstructive jaundice to understand the location, scope and cause of biliary obstruction.

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