Detection and localization of bile duct leaks after cholecystectomy using Gd-EOB-DTPA-enhanced MR cholangiography: retrospective study of 16 patients.

J Comput Assist Tomogr

*From the Diagnostic Radiology, The Health Sciences Center, University of Manitoba, Winnipeg, Manitoba, Canada; †Diagnostic Radiology, MRI Department, St. Boniface General Hospital, University of Manitoba, Winnipeg, Manitoba, Canada; ‡Division of Abdominal Imaging and Intervention, Brigham and Women's Hospital, Harvard Medical School, Boston, MA; and §Diagnostic Radiology, CT Department, St. Boniface General Hospital, University of Manitoba, Winnipeg, Manitoba, Canada.

Published: September 2014

Objective: To determine if gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid (Gd-EOB-DTPA)-enhanced magnetic resonance (MR) cholangiography can detect and localize bile duct leaks in postcholecystectomy patients.

Material And Methods: Four blinded independent radiologists performed a retrospective review of 16 consecutive patients who underwent MR cholangiography with intravenous Gd-EOB-DTPA for the evaluation of possible biliary leak. Image quality, ductal opacification, and presence and location of any bile leak were evaluated. An independent observer determined the criterion standard using a consensus of all chart, clinical, and imaging findings.

Results: All 6 bile leaks confirmed at endoscopic retrograde cholangiopancreatography were diagnosed by all reviewers (sensitivity, 100%). Of the 10 patients with no leak, only one reader incorrectly diagnosed a bile leak in a single case (specificity, 98%). The accuracy for detection of the site of leak with Gd-EOB-DTPA-enhanced MR cholangiography was 80%.

Conclusion: Gadolinium-EOB-DTPA-enhanced MR can detect bile leaks with a high sensitivity and specificity.

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Source
http://dx.doi.org/10.1097/RCT.0000000000000083DOI Listing

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