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.{{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}}
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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}}