Cholangitis MRI: Difference between revisions

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==MRI==
==MRI==
Once [[magnetic resonance cholangiopancreatography]] (MRCP) has been conducted, an MRI scan can be implemented.
There are no MRI findings associated with acute cholangitis.
*The MRI machine uses radio waves and magnets to scan the internal organs and tissues.<ref name="urlPrimary Sclerosing Cholangitis">{{cite web |url=http://www.niddk.nih.gov/health-information/health-topics/liver-disease/primary-sclerosing-cholangitis/Pages/facts.aspx |title=Primary Sclerosing Cholangitis |format= |work= |accessdate=April 20 2016}}</ref>
===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.<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>
**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.<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>
 
===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.<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.
*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
**Anatomical
**Semiological
 
([http://www.radswiki.net Images courtesy of RadsWiki])
 
<gallery>
Image:Recurrent_pyogenic_cholangitis_MRI_101.jpg|Recurrent pyogenic cholangitis
Image:Recurrent_pyogenic_cholangitis_MRI_102.jpg|Recurrent pyogenic cholangitis
</gallery>
 
<gallery>
Image:Recurrent_pyogenic_cholangitis_MRI_103.jpg|Recurrent pyogenic cholangitis
Image:Recurrent_pyogenic_cholangitis_MRI_104.jpg|Recurrent pyogenic cholangitis
</gallery>
 
<gallery>
Image:Recurrent_pyogenic_cholangitis_MRI_105.jpg|Recurrent pyogenic cholangitis
Image:Recurrent_pyogenic_cholangitis_MRI_106.jpg|Recurrent pyogenic cholangitis
</gallery>


==References==
==References==

Revision as of 00:50, 14 December 2017

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

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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.

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There are no MRI findings associated with acute cholangitis.

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