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Related Experiment Videos

Nonvisualized gallbladder on oral cholecystography: implications for lithotripsy.

K Wong1, O Ekberg, I Laufer

  • 1Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia 19104.

Gastrointestinal Radiology
|January 1, 1990
PubMed
Summary

Gallstone lithotripsy protocols often require gallbladder visualization on oral cholecystography (OCG). This study found that ultrasound can identify eligible gallstone lithotripsy candidates among patients with non-visualized gallbladders on OCG.

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Area of Science:

  • Gastroenterology
  • Medical Imaging
  • Surgical Procedures

Background:

  • Oral cholecystography (OCG) is standard for evaluating gallstone lithotripsy candidates.
  • OCG assesses cystic duct patency and gallstone characteristics.
  • Gallbladder non-visualization on OCG excludes patients from lithotripsy.

Purpose of the Study:

  • To retrospectively evaluate ultrasonographic findings in patients with non-visualized gallbladders on OCG.
  • To determine the prevalence of gallstones in this patient group.
  • To assess eligibility for gallstone lithotripsy based on ultrasound findings.

Main Methods:

  • Retrospective analysis of 32 patients with non-visualized gallbladders on OCG.
  • Utilized ultrasound (US) to detect and characterize gallstones (number and size).

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  • Compared US findings with OCG results.

    • Main Results:

    • Ultrasound detected no stones in 11 patients (34%), suggesting other reasons for OCG non-visualization.
    • Ultrasound identified 1-2 stones in 6 patients (19%) and >3 stones in 15 patients (47%).
    • Approximately 20% of patients with non-visualized gallbladders on OCG may be eligible for lithotripsy if cystic duct patency is confirmed by alternative methods.

    Conclusions:

    • Ultrasound can identify gallstones in patients whose gallbladders do not visualize on OCG.
    • Alternative methods for confirming cystic duct patency (e.g., CT, cholescintigraphy) are crucial for these patients.
    • This study suggests a potential pathway to increase eligibility for gallstone lithotripsy.