Cholangitis MRI

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Farwa Haideri [2]

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Overview

Magnetic resonance imaging (MRI) has become the standard method for morphological examination of the bile ducts, particularly for diagnosing cholangitis. T1-weighted and T2-weight sequences offer different results.

MRI

T1-weighted sequences

  • T1-weighted sequences are essential in biliary disease when looking for intrahepatic calculi.
  • These sequences are recommended during 3D acquisition with fat saturation.[2]
    • Fat saturation offers improvements in diagnostic possibilities, especially for the bile ducts close to the hilum of the liver, which is often rich in fat.

T2-weighted sequences

  • For examination of the bile duct, T2-weighted sequences with a long echo time are generally used, without fat saturation.[2]

Limitations to MRIs

  • Whether T1-weighted, T2-weighted or magnetic resonance cholangiography sequences are involved, the main limitation of bile duct MRI is in its suboptimal spatial resolution.[2]
    • Precise examination of the distal bile ducts is still incomplete.
  • The three main limitations resulting from MRIs include those that are:[2]
    • Technical
    • Anatomical
    • Semiological

(Images courtesy of RadsWiki)

References

  1. "Primary Sclerosing Cholangitis". Retrieved April 20 2016. Check date values in: |accessdate= (help)
  2. 2.0 2.1 2.2 2.3 Arrivé, L.; Ruiz, A.; El Mouhadi, S.; Azizi, L.; Monnier-Cholley, L.; Menu, Y. (2013). "MRI of cholangitis: Traps and tips". Diagnostic and Interventional Imaging. 94 (7–8): 757–770. doi:10.1016/j.diii.2013.03.006. ISSN 2211-5684.


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