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Radionuclide CholescintographyAka: HIDA scan, DISIDA scan

Technique
1. Technetium-iminodiacetic acid analog injected IV
  1. HIDA scan used for Serum Bilirubin < 5-7 mg/dl
  2. DISIDA scan used for Serum Bilirubin >7 mg/dl
2. Absorbed and secreted into biliary tract by hepatocytes
Interpretation
1. Normal Billiary tract and Gallbladder
  1. Clear outline gallbladder and cystic duct in 1 hour
2. Cystic duct obstruction
  1. Failure to outline Gallbladder within 1 hour

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