View source for Cholangiography

{{Short description|Imaging of the bile duct}}
{{Infobox medical intervention |
  Name        = Cholangiography |
  Image       =Perkutan transhepatische Cholangiographie.jpg |
  Caption     =Percutaneous transhepatic cholangiography |
  ICD10       = |
  ICD9        = {{ICD9proc|87.5}} |
  MeshID      = D002758 |
  OPS301      = {{OPS301|3-13c}} |
  OtherCodes  = |
}}
'''Cholangiography''' is the imaging of the [[bile duct]] (also known as the biliary tree) by [[x-rays]] and an injection of contrast medium.<ref>{{Cite web|title=Cholangiography {{!}} Gallbladder cancer {{!}} Cancer Research UK|url=https://www.cancerresearchuk.org/about-cancer/gallbladder-cancer/getting-diagnosed/tests-diagnose/cholangiography|access-date=2021-01-04|website=www.cancerresearchuk.org}}</ref>
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==Types==
There are at least four types of cholangiography:{{cn|date=January 2022}}

# [[Percutaneous transhepatic cholangiography]] (PTC): Examination of [[liver]] and bile ducts by x-rays. This is accomplished by the insertion of a thin needle into the liver carrying a contrast medium to help to see blockage in liver and bile ducts.
# [[Endoscopic retrograde cholangiopancreatography]] (ERCP). Although this is a form of imaging, it is both diagnostic and therapeutic, and is often classified with surgeries rather than with imaging.
# [[Primary cholangiography]] (or ''perioperative''): Done in the operation room during a biliary drainage intervention.
# [[Secondary cholangiography]]: Done after a biliary drainage intervention.

In both cases [[fluorescent]] fluids are used to create contrasts that make the diagnosis possible. Cholangiography has largely replaced the previously used method of [[intravenous cholangiography]] (IVC).{{cn|date=January 2022}}
* [[Magnetic resonance cholangiopancreatography]] (MRCP) is another cholangiography method.

==References==
{{Reflist}}

{{Angiography}}
{{Digestive system procedures}}
{{Medical imaging}}

[[Category:Projectional radiography]]
[[Category:Hepatology]]
[[Category:Digestive system imaging]]