Ultrasound characteristics combined with gamma-glutamyl transpeptidase for diagnosis of biliary atresia in infants less than 30 days

This retrospective study demonstrates that combining gallbladder ultrasound classification with serum GGT levels (cutoff 188 IU/L) achieves 100% sensitivity in diagnosing biliary atresia in infants under 30 days old. Gallbladder classification outperformed fibrotic cord thickness as a diagnostic marker, offering a reliable non-invasive screening approach for early BA detection.