Biliary scintigraphy with DISIDA. A simpler way of showing bile duct patency in suspected biliary atresia

Area of Science:

• Pediatric Gastroenterology
• Diagnostic Imaging
• Hepatobiliary System

Background:

• Biliary atresia is a serious condition in infants requiring early diagnosis.
• Accurate and timely diagnosis of biliary obstruction is crucial for effective treatment.
• Existing diagnostic methods may have limitations in speed or accuracy.

Purpose of the Study:

• To evaluate the diagnostic accuracy of 99mTC-diisopropyl iminodiacetic acid (DISIDA) scintigraphy in infants with suspected biliary atresia.
• To compare the efficacy of DISIDA scintigraphy with the 131I Rose-Bengal faecal excretion test.
• To assess the utility of phenobarbitone treatment in conjunction with DISIDA scintigraphy.

Main Methods:

• Infants under 12 weeks with suspected biliary atresia underwent 99mTC-DISIDA scintigraphy.
• Oral phenobarbitone was administered prior to scintigraphy in some cases.
• Bile duct patency or obstruction was assessed based on scintigraphic findings.
• Results were compared to the 131I Rose-Bengal faecal excretion test.

Main Results:

• 99mTC-DISIDA scintigraphy accurately identified bile duct patency or obstruction in 87% (28/32) of infants.
• The test demonstrated high diagnostic accuracy in infants under 12 weeks of age.
• The investigation proved to be faster than the 131I Rose-Bengal faecal excretion test.

Conclusions:

• 99mTC-DISIDA scintigraphy is a reliable and rapid diagnostic tool for suspected biliary atresia in young infants.
• Phenobarbitone pretreatment may enhance the diagnostic capability of DISIDA scintigraphy.
• This imaging technique offers a valuable alternative to traditional methods for evaluating bile duct patency.