Is intravenous cholangiography still useful?

Area of Science:

• Radiology
• Gastroenterology
• Hepatobiliary Surgery

Background:

• The intravenous cholangiogram (IVC) has been used to evaluate common bile duct (CBD) disease.
• Its diagnostic accuracy and reliability have been questioned in modern medical practice.

Purpose of the Study:

• To retrospectively assess the diagnostic usefulness of IVC for CBD disease.
• To determine the reliability and error rate of IVC compared to gold-standard methods.

Main Methods:

• Retrospective chart review of 128 IVC studies.
• Categorization of IVC studies based on technical adequacy for interpretation.
• Verification of IVC diagnoses against endoscopic retrograde cholangiography, operative cholangiography, choledochotomy, or autopsy.

Main Results:

• Only 55% of IVC studies were technically adequate; 45% were suboptimal or nondiagnostic.
• In technically adequate IVCs, the diagnostic error rate was 40%, primarily due to missed gallstones.
• IVC demonstrated significant unreliability in evaluating biliary tract pathology.

Conclusions:

• Intravenous cholangiography is generally unreliable for biliary tract evaluation.
• Alternative imaging modalities such as endoscopic or transhepatic cholangiography should be preferred.
• IVC should be replaced by more accurate diagnostic tools for CBD disease.