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Magnetic resonance cholangiography in children

Department of Diagnostic Radiology and Organ Imaging, The Chinese University of Hong Kong, Prince of Wales Hospital, Ngan Shing Street, Shatin, NT, Hong Kong

View larger version (96K): [in a new window]   Figure 1. Magnetic resonance cholangiography (MRC) of a 2-month-old baby who has suspected biliary atresia diagnosed by ultrasound. Maximum intensity projection images of MRC showed normal biliary system and normal gallbladder (*).

View larger version (85K): [in a new window]   Figure 2. A 1-year-old boy with biliary atresia diagnosed at birth and surgery refused. Admitted for increase in jaundice. Maximum intensity projection images of magnetic resonance cholangiography (MRC) showed marked dilatation of left (*) and right intrahepatic ducts (#) with absence of common bile duct and gallbladder.

View larger version (52K): [in a new window]   Figure 3. A 15-year-old boy with long standing biliary atresia post Kasai operation. (a) Pre contrast T1 sequence shows linear hypointensity (arrow), which (b) disappears after gadolinium administration. This is likely to represent fibrosis, the fact that it extends to the periphery of the liver may be related to the surgical intervention. Also note the slightly irregular liver edge (arrowhead) and splenomegaly (*).

View larger version (80K): [in a new window]   Figure 4. A 1-year-old boy with choledochal cyst. Maximum intensity projection images of magnetic resonance cholangiography shows involvement of both the common hepatic duct (#) and common bile duct (*).

View larger version (90K): [in a new window]   Figure 5. A 10-year-old girl with Caroli disease. Maximum intensity projection images of magnetic resonance cholangiography shows multiple saccular dilatation of both left and right hepatic ducts.

View larger version (57K): [in a new window]   Figure 6. Maximum intensity projection images of magnetic resonance cholangiography showing a large gallstone (arrow) in a 4-month-old baby with haemolytic disease.

View larger version (64K): [in a new window]   Figure 7. Maximum intensity projection images of the magnetic resonance cholangiography of a 2-month-old baby showing multiple sludge in right hepatic duct (arrow) and common bile duct (arrow).

View larger version (83K): [in a new window]   Figure 8. A 14-year-old girl with biliary atresia and liver transplant. Maximum intensity projection images of magnetic resonance cholangiography showing a round biliary calculus (arrow) in proximal left hepatic duct.