Ana Rizvi, Mahjabeen Mahmood Kamal, Fariha Ahmad, Mamoona Shoukat, Shaghaf Iqbal, Nadia Ahmad, Ammara Ghafoor



Objective: To determine the diagnostic accuracy of ultrasonography in detecting choledocholithiasis in obstructive jaundice patients taking magnetic resonance cholangiopancreatography as gold standard. Material and methods: This Cross-Sectional Validation Study was conducted at Department of Radiology, KRL Hospital, Islamabad from 31st January 2021 to 31st July 2021. A total of 150 patients of both gender presenting with Obstructive jaundice were included in the study. The patient underwent directly under a limited sonographic scan covering the area of pancreato-biliary region. The ultrasound was performed by using a curved low frequency probe (2-5 MHz). The pancreato-biliary region was evaluated with gray scale ultrasound. Findings from both ultrasound and MRCP were noted. Results: Age range in this study was from 18 to 70 years with mean age of 42.113±7.64 years and mean weight was 80.220±6.76 Kg. Ultrasound showed sensitivity of 76.3%, specificity 92.3%, diagnostic accuracy 86%, PPV 86.5% and NPV by 85.7%.  Conclusion: Ultrasound has a moderate sensitivity, high specificity and a high diagnostic accuracy in diagnosis of obstructive jaundice.

Keywords: Obstructive jaundice, Choledocholithiasis, Ultrasound, MRCP

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