1. Contrast-enhanced magnetic resonance cholangiography versus heavily T2-weighted magnetic resonance cholangiography
- Author
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Christos Gogas, Nickolas Papanikolaou, Nicholas Gourtsoyiannis, Eleni Eracleous, Thomas G. Maris, and Panos Prassopoulos
- Subjects
Common Bile Duct ,Manganese ,Materials science ,medicine.diagnostic_test ,media_common.quotation_subject ,Cystic Duct ,Contrast Media ,Magnetic resonance imaging ,General Medicine ,Magnetic Resonance Imaging ,Nuclear magnetic resonance ,Cholangiography ,Pyridoxal Phosphate ,medicine ,Contrast (vision) ,Humans ,Radiology, Nuclear Medicine and imaging ,Bile Ducts ,T2 weighted ,Edetic Acid ,media_common - Abstract
To investigate the feasibility of contrast-enhanced magnetic resonance cholangiography (CE-MRC) and compare it with single-shot turbo spin-echo magnetic resonance cholangiography (SSTSE-MRC).Fifteen patients with suspected metastatic liver disease (n = 10) or biliary tree abnormalities (n = 5) underwent a magnetic resonance imaging (1.5-T system) examination before and after mangafodipir administration. Contrast-enhanced MRC with a three-dimensional fast low-angle shot sequence after mangafodipir trisodium administration was compared with SSTSE-MRC. Four anatomic segments were evaluated: the intrapancreatic and extrapancreatic common bile duct segments, the cystic duct, and the area of hepatic bifurcation. Contrast-enhanced MRC and SSTSE-MRC were separately analyzed on a 5-point grading scale in terms of ductal segment visualization and lumen narrowing or dilatation.There was no difference (P = 0.375) in segment visualization between CE-MRC and SSTSE-MRC; 56 of the 60 segments were visualized by both techniques. In the evaluation of ductal narrowing or dilatation, nonsignificant differences (P = 0.500) were observed. Contrast-enhanced MRC was not influenced by fluid superimposition and provided additional information from background tissues.Contract-enhanced MRC is a feasible technique showing anatomic correlation with SSTSE-MRC, and it can in addition provide functional information. Contrast-enhanced MRC may be used in selected patients when traditional SSTSE-MRC is inconclusive.
- Published
- 2001