biliary atresia
DESCRIPTION
Biliary Atresia. Diagnostic Ancillary Procedures. Diagnostic Ancillary Procedures. Biliary scintigraphy using Technetium-99m iminodiacitate (DISIDA) Ultrasound Percutaneous liver biopsy Cholangiogram. Hepatobiliary scintigraphy. - PowerPoint PPT PresentationTRANSCRIPT
Biliary Atresia
Diagnostic Ancillary Procedures
Diagnostic Ancillary Procedures
• Biliary scintigraphy using Technetium-99m iminodiacitate (DISIDA)
• Ultrasound• Percutaneous liver biopsy• Cholangiogram
Hepatobiliary scintigraphy
• Demonstrates bile duct patency using radionucleotide (DISIDA)
• A new diagnostic approach to biliary atresia with emphasis on the ultrasonographic triangular cord sign
Ultrasound
• Not defintive for biliary atresia• May be performed to assess for other causes
of biliary tract obstruction
Percutaneous Liver Biopsy
• Differentiates biliary atresia from neonatal hepatitis
• Ductular proliferation, bile duct and ductular bile plugs, and portal fibrosis are the best indicators of biliary atresia upon biopsy.
Cholangiogram
• Used t surgery• Demonstrates the anatomy of the biliary tree• Determines whether extrahepatic bile duct
atresia is present• Evalutes whether there is distal bile flow to
the duodenum• May demonstrate hypoplasia of the
extrahepatic biliary system