Cholangitis MRI: Difference between revisions
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===Limitations to MRIs=== | ===Limitations to MRIs=== | ||
*Whether T1-weighted, T2-weighted or magnetic resonance cholangiography sequences are involved, the main limitation of bile duct MRI is | *Whether T1-weighted, T2-weighted, or magnetic resonance cholangiography sequences are involved, the main limitation of bile duct MRI is its suboptimal spatial resolution.<ref name="ArrivéRuiz2013">{{cite journal|last1=Arrivé|first1=L.|last2=Ruiz|first2=A.|last3=El Mouhadi|first3=S.|last4=Azizi|first4=L.|last5=Monnier-Cholley|first5=L.|last6=Menu|first6=Y.|title=MRI of cholangitis: Traps and tips|journal=Diagnostic and Interventional Imaging|volume=94|issue=7-8|year=2013|pages=757–770|issn=22115684|doi=10.1016/j.diii.2013.03.006}}</ref> | ||
**Precise examination of the distal bile ducts is still incomplete. | **Precise examination of the distal bile ducts is still incomplete. | ||
*The three main limitations resulting from MRIs | *The three main limitations resulting from MRIs fall into the following categories:<ref name="ArrivéRuiz2013">{{cite journal|last1=Arrivé|first1=L.|last2=Ruiz|first2=A.|last3=El Mouhadi|first3=S.|last4=Azizi|first4=L.|last5=Monnier-Cholley|first5=L.|last6=Menu|first6=Y.|title=MRI of cholangitis: Traps and tips|journal=Diagnostic and Interventional Imaging|volume=94|issue=7-8|year=2013|pages=757–770|issn=22115684|doi=10.1016/j.diii.2013.03.006}}</ref> | ||
**Technical | **Technical | ||
**Anatomical | **Anatomical | ||
Revision as of 19:57, 21 September 2016
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
Once magnetic resonance cholangiopancreatography (MRCP) has been conducted, an MRI scan can be implemented.
- The MRI machine uses radio waves and magnets to scan the internal organs and tissues.[1]
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 its suboptimal spatial resolution.[2]
- Precise examination of the distal bile ducts is still incomplete.
- The three main limitations resulting from MRIs fall into the following categories:[2]
- Technical
- Anatomical
- Semiological
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Recurrent pyogenic cholangitis
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Recurrent pyogenic cholangitis
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Recurrent pyogenic cholangitis
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Recurrent pyogenic cholangitis
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Recurrent pyogenic cholangitis
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Recurrent pyogenic cholangitis
References
- ↑ "Primary Sclerosing Cholangitis". Retrieved April 20 2016. Check date values in:
|accessdate=(help) - ↑ 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.