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Transabdominal Ultrasound: A Potentially Accurate And Useful Tool For Detection Of Choledocholithiasis
Zainab Zahur1, Asif Jeilani2, Tatheer Fatima3
1Department of Radiology, Pakistan atomic Energy Cancer Hospital NORI, Islamabad, Pakistan.
Journal of Ayub Medical College, Abbottabad : JAMC
|January 15, 2020
Summary
Transabdominal ultrasound is a cost-effective tool for detecting common bile duct (CBD) stones, showing 76.9% accuracy. This non-invasive method aids in diagnosing choledocholithiasis, especially in initial assessments.
Area of Science:
- Medical Imaging
- Gastroenterology
- Diagnostic Radiology
Background:
- Choledocholithiasis, or gallstones in the common bile duct (CBD), affects an estimated 5-20% of patients undergoing cholecystectomy.
- Transabdominal ultrasound (US) is a primary imaging modality for gallstone disease symptoms.
- The exact incidence and prevalence of choledocholithiasis remain undetermined.
Purpose of the Study:
- To validate the diagnostic accuracy of transabdominal ultrasound for detecting choledocholithiasis.
- To compare ultrasound findings with Endoscopic Retrograde Cholangiopancreatography (ERCP) as the gold standard.
Main Methods:
- A descriptive, cross-sectional validation study was conducted from February to July 2015.
- Patients with suspected choledocholithiasis underwent abdominal ultrasound.
- Ultrasound findings (CBD dilatation, intrahepatic biliary dilatation, CBD calculus visualization) were compared with ERCP results.
Main Results:
- Transabdominal ultrasound demonstrated a diagnostic accuracy of 76.9% for choledocholithiasis.
- The sensitivity was 76.2%, and the specificity was 81.3% in detecting CBD stones.
Conclusions:
- Ultrasound is a valuable, non-invasive, and cost-effective initial tool for diagnosing CBD calculi.
- Its availability and lack of radiation make it suitable for baseline assessment of choledocholithiasis.
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