percutaneous transhepatic cholangiography

This can additionally be performed as part of a percutaneous transhepatic cholangiography, then a form of interventional radiology.

When this happens, percutaneous transhepatic cholangiography (PTC) may be needed to relieve pressure.

The diagnosis was made in 57 patients by endoscopic retrograde cholangiopancreatography and in three by percutaneous transhepatic cholangiography.

Percutaneous transhepatic cholangiography was carried out under intravenous sedation after intravenous administration of broad spectrum antibiotics and crystalloids.

Six patients, all with malignant strictures, had bile samples taken at both endoscopic retrograde cholangiopancreatography and percutaneous transhepatic cholangiography.

The positivity rate for samples collected at endoscopic retrograde cholangiopancreatography was 31% in comparison with 22% at percutaneous transhepatic cholangiography.

PTC (percutaneous transhepatic cholangiography): A procedure used to x-ray the liver and bile ducts.

He was qualified with the title of Docent in Radiology in 1967 after successfully defending his thesis on percutaneous transhepatic cholangiography.

As an alternative to ERCP, percutaneous transhepatic cholangiography (PTC) may be utilized.

Cholangiopgraphy (endoscopic retrograde cholangiopancreatography or percutaneous transhepatic cholangiography) showed an upper third bile duct stricture in 27 patients, 18 being malignant and six having positive cytology (33%).

Endoscopic retrograde cholangiopancreatography (ERCP) and percutaneous transhepatic cholangiography allow visualisation of the site and give some information on the nature of the stricture but are not diagnostic.

Percutaneous transhepatic cholangiography (PTHC or PTC) or percutaneous hepatic cholangiogram is a radiologic technique used to visualize the anatomy of the biliary tract.

Two of these patients had positive cytology, in one at both endoscopic retrograde cholangiopancreatography and percutaneous transhepatic cholangiography and in the other at percutaneous transhepatic cholangiography alone.

Since the early 1970s, however, it has been possible to collect bile samples at either endoscopic retrograde cholangiopancreatography or percutaneous transhepatic cholangiography and a few small series of patients have been reported with good diagnostic yields and no falsely positive results.

These results would suggest that endoscopic retrograde cholangiopancreatography may be a better method of sampling for biliary cytology than percutaneous transhepatic cholangiography although larger numbers of patients within a randomised study would be required for conformation.

An alternative explanation for the more favourable results at endoscopic retrograde cholangiopancreatography is that the type of stricture encountered by the two techniques is different, percutaneous transhepatic cholangiography being preferred when imaging suggests a high stricture and endoscopic retrograde cholangiopancreatography when it is low.

At percutaneous transhepatic cholangiography bile is often sampled on initial puncture of the liver at a site distant from the stricture whereas at endoscopic retrograde cholangiopancreatography sampling is usually carried out at the site of the stricture after it has been disrupted by insertion of an endoprosthesis.