MRCP and MRCP+ of a 36-year-old man with intrahepatic and extrahepatic PSC.
(A) Maximum intensity projection image and (B) the corresponding parametric biliary 3D-tree model generated from MRCP+, colour coded according to duct diameter. The gallbladder has been automatically segmented and its volume provided separately. The cystic and pancreatic ducts were excluded. MRCP, magnetic resonance cholangiopancreatography; PSC, primary sclerosing cholangitis.