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Percutaneous transhepatic cholangiography, percutaneous hepatic cholangiogram (PTHC) is a radiological technique used to visualize the anatomy of the biliary tract. [1] A contrast medium is injected into a bile duct in the liver , after which X-rays are taken.
Other complications (less than 1%) may include heart and lung problems, infection in the bile duct called cholangitis, that can be life-threatening, and is regarded as a medical emergency. Using antibiotics before the procedure shows some benefits to prevent cholangitis and septicaemia. [25] In rare cases, ERCP can cause fatal complications. [26]
Percutaneous transhepatic cholangiography. ICD-9-CM: 87.5: MeSH: OPS-301 code: 3-13c [edit on Wikidata] Cholangiography is the imaging of the bile duct ...
Cholangiogram through a nasobiliary drain showing the common bile duct in black (diagonally from top left to bottom right in the center) with an interruption in the contour due to a large gallstone. Given that ascending cholangitis usually occurs in the setting of bile duct obstruction, various forms of medical imaging may be employed to ...
Endoscopic retrograde cholangiography may be useful to visualize the extrahepatic biliary ducts. [87] In case of anatomical anomalies, or if endoscopic retrograde cholangiography is unsuccessful, percutaneous transhepatic cholangiography may be used. [77]
Depending on a patient's condition, this type of obstructive jaundice can be alleviated with surgery or chemotherapy but if these measures fail to restore proper flow of bile, an interventional radiologist can perform a procedure called a percutaneous transhepatic cholangiography (PTC). [20]
For a percutaneous biopsy, it is recommended to use a Birmingham gauge 16 or wider cutting needle, and obtaining a length of 20–25 mm of liver tissue. The presence of 10–12 portal tracts within the specimen is considered sufficient for reliable analysis, ensuring that architectural relationships between structures are maintained.
As an alternative to ERCP, percutaneous transhepatic cholangiography (PTC) may be utilized. Magnetic resonance cholangiopancreatography (MRCP) is a non-invasive alternative to ERCP. [ 56 ] [ 57 ] [ 58 ] Some authors have suggested that MRCP should supplant ERCP in the diagnosis of biliary cancers, as it may more accurately define the tumor and ...