Biliary ducts
X-ray
- No indication
Ultrasound
- Suspected gallstones
- Suspected cholestasis
CT
- For easier cause detection in cases of cholestasis
NB: Gall bladder concretions are not always visible with CT
MRI (MRCP)
- Investigation of tumours in the biliary ducts, cholangiocarcinoma
- Uncleared cholestasis, also shows pancreatic duct