A HIDA scan is most often done to evaluate your gallbladder. It's also used to look at the bile-excreting function of your liver and to track the flow of bile from your liver into your small intestine. A HIDA scan images liver function, which complements images of body structure (anatomy) provided by X-ray and ultrasound.
A HIDA scan may help in the diagnosis of several diseases and conditions, such as:
- Gallbladder inflammation (cholecystitis)
- Bile duct obstruction
- Congenital abnormalities in the bile ducts, such as biliary atresia
- Postoperative complications, such as bile leaks and fistulas
- Assessment of liver transplant
Your doctor may use a HIDA scan as part of a test to measure the rate at which bile is released from your gallbladder (gallbladder ejection fraction).