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Preliminary clinical experience with Tc-99m disofenin as a biliary imaging agent in pediatrics
Insights
Technetium-99m disofenin effectively visualizes the pediatric biliary tract, offering clear images for diagnosing various congenital and acquired abnormalities. This radiotracer demonstrates rapid blood clearance and minimal renal interference, ensuring diagnostic utility across a wide bilirubin range.
Area of Science:
- Nuclear Medicine
- Pediatric Radiology
- Hepatobiliary Imaging
Background:
- Evaluating pediatric biliary tract abnormalities requires effective imaging agents.
- Tc-99m disofenin, an iminodiacetic acid derivative, is a potential radiopharmaceutical for hepatobiliary scintigraphy.
Purpose of the Study:
- To assess the efficacy of Tc-99m disofenin in evaluating the biliary tract of pediatric patients.
- To determine the diagnostic utility of Tc-99m disofenin across a range of bilirubin levels and for various biliary abnormalities.
Main Methods:
- Tc-99m disofenin was administered to 28 children for 33 hepatobiliary scintigraphy examinations.
- Image quality, blood clearance, renal activity, and diagnostic accuracy for biliary abnormalities were assessed.
Main Results:
- Tc-99m disofenin demonstrated rapid hepatocyte clearance and produced excellent biliary system images.
- Renal activity did not impede image interpretation.
- Clinically useful information was obtained in patients with bilirubin levels from 0.3 to 14.1 mg/dl, with no diagnostic difficulty for acquired and congenital biliary tract abnormalities.
Conclusions:
- Tc-99m disofenin is a valuable radiopharmaceutical for pediatric hepatobiliary imaging.
- It provides high-quality imaging and is effective in diagnosing a spectrum of pediatric biliary tract diseases.
Abstract:
Tc-99m disofenin, a derivative of iminodiacetic acid, was used to evaluate the biliary tract of 28 children who had a total of 33 examinations. This radiopharmaceutical was rapidly cleared from the blood by the hepatocytes and yielded excellent images of the biliary system. Renal activity did not present difficulty in image interpretation. It provided clinically useful information in a bilirubin range of 0.3 to 14.1 mg/dl. The major categories of acquired and congenital biliary tract abnormalities in children presented no diagnostic difficulty with Tc-99m disofenin.