engleski

Magnetic resonance cholangiography in biliary obstruction

Magnetic resonance cholangiography (MRC) is a noninvasive imaging test using sequences with unique weighting that allows relatively stagnant fluids, such as bile in the biliary tract, to have a high-signal intensity compared with the dark, low-signal intensity of adjacent solid hepatic and pancreatic tissue and fast-flowing fluid. Our study recruited 65 consecutive patients with clinical and biochemical signs of acute biliary obstruction between December 2007 and September 2008. All procedures were performed with a 1.5 T superconductive MR unit. Nineteen patients had stones in the bile ducts. All false positives referred to stones up to 3 mm in diameter, and spontaneous elimination was not excluded. MRC accurately demonstrated 5 malignant stenoses, and one benign stenosis, without false positives or false negatives. MRC showed high sensitivity and specificity for demonstrating the level and presence of biliary obstruction. It also reliably differentiates between malignant and benign cause of biliary obstruction, including bile duct lithiasis.

magnetic resonance cholangiography; biliary obstruction

nije evidentirano