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DOI: 10.1148/radiol.2303021775
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Biliary Tract Depiction in Living Potential Liver Donors: Comparison of Conventional MR, Mangafodipir Trisodium–enhanced Excretory MR, and Multi–Detector Row CT Cholangiography—Initial Experience1

Benjamin M. Yeh, MD, Richard S. Breiman, MD, Bachir Taouli, MD, Aliya Qayyum, MB, MBS, John P. Roberts, MD and Fergus V. Coakley, MD

1 From the Departments of Radiology (B.M.Y., B.T., R.S.B., A.Q., F.V.C.) and Surgery (J.P.R.), University of California San Francisco, Box 0628, C-324C, 505 Parnassus Ave, San Francisco, CA 94143-0628. From the 2002 RSNA scientific assembly. Received December 26, 2002; revision requested March 4, 2003; revision received May 30; accepted July 23. Address correspondence to B.M.Y. (e-mail: benyeh@itsa.ucsf.edu).



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  		Figure 1. Volume-rendered CT cholangiogram (view from above) in a 25-year-old woman examined for potential liver donation. Conventional branching anatomy of the bile ducts is seen, and the right posterior branch (arrow), a second-order branch, is fully visualized.

 


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  		Figure 2. Oblique coronal thick-slab RARE MR cholangiogram ({infty}/1,200; matrix, 512 x 256; echo train length, 256; section thickness, 7 cm; field of view, 250 mm) in a 40-year-old man examined for potential liver donation. The common duct (arrow) bifurcates into right and left main (first-order) branches. There is excellent visualization of the right posterior branch (arrowhead).

 


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  		Figure 3. Volume-rendered coronal mangafodipir trisodium-enhanced excretory MR cholangiogram (5.3/1.5; flip angle, 40°; matrix, 512 x 256; section thickness, 1.0 mm; gap, 0 mm; field of view, 260 mm) in an oblique anteroposterior projection obtained in a 40-year-old man examined for potential liver donation. The right posterior duct (arrowhead) converges with the left main duct (large arrow). The right anterior duct (small arrow) is well seen, but its confluence with the other ducts is not well visualized.

 


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  		Figure 4. Graph shows mean segment scores for readers 1 and 2 for biliary tract visualization at CT cholangiography, conventional MR cholangiography, mangafodipir trisodium-enhanced excretory MR cholangiography, and combined conventional and excretory MR cholangiography. A score of 0 indicates that a given segment was not seen; a score of 1, that the segment was faintly seen; a score of 2, that the segment was well visualized but its origin or a portion of the duct was not seen; and a score of 3, that there was excellent visualization of the segment.

 




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