Comparative study of diagnostic accuracy of magnetic resonance cholangiopancreatography (MRCP) with ultrasonography in choledocolithiasis with post endoscopic retrograde cholangio-pancreatography (ERCP) correlation

Background: Choledocolithiasis may be classified into primary and secondary forms. Primary choledocolithiasis denotes de novo formation of stones, often made of calcium bilirubinate within the ducts. Materials and Methods: The present prospective comparative study was conducted in the Department of Radio Diagnosis and Imaging, SMHS hospital, Government medical college srinagar. Patients admitted or attending OPD in SMHS hospital with suspected obstructive jaundice or who were known case of obstructive jaundice were included in the study. The study was performed on all patients after written informed consent was acquired from them. The study was carried out over a period of 24 months from August 2014 to July 2016. Results: Total 70 patients were selected for this comparative study after taking informed consent. Among 70 patients 50 patients were found to have choledocolithiasis. Rest 20 patients were found to have obstructive jaundice due to causes other than choledocolithiasis. Out of 70 patients 40 (57%) patients were female and 30 (43%) patients were male. Conclusion: USG is inexpensive, non-invasive modality for choledocolithiasis, however has low sensitivity for detecting distal CBD calculi.