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Gadoxetate disodium-enhanced liver MRI: gallbladder opacification patterns during hepatobiliary phase
Adib R Karam1, Young H Kim, Michael T Corwin
1University of Massachusetts Medical School, Radiology Department, 55 Lake Avenue North, Worcester, MA01655.
Objective(S):
To describe the different patterns of gallbladder lumen opacification on gadoxetate disodium-enhanced liver magnetic resonance imaging (MRI).
Methods:
One hundred eighty-seven MRI examinations were reviewed by two abdominal imaging radiologists who described the different patterns of gallbladder opacification, based on comparing the post-contrast to the pre-contrast images.
Results:
Four patterns of gallbladder opacification were identified, all based on the anti-dependent distribution of the excreted biliary contrast inside the gallbladder lumen. Contrast was identified at the level of the gallbladder neck, anti-dependant wall, and gallbladder fundus. One gallbladder completely filled with contrast.
Conclusion(S):
The opacification of the gallbladder lumen follows a distinctive anti-dependent distribution.
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