There are at least four types of cholangiography:
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).
"Cholangiography | Gallbladder cancer | Cancer Research UK". www.cancerresearchuk.org. Retrieved 2021-01-04. https://www.cancerresearchuk.org/about-cancer/gallbladder-cancer/getting-diagnosed/tests-diagnose/cholangiography ↩