Data analysis - All data were encrypted and inputted into a computer and then processed using SPSS 20.0 software - The difference was considered statistically significant when p < 0.05 - Determine the values of MRCP in terms of the diagnosis of location, the number of stones of the CBD, RHD, LHD: sensitivity, specificity, accuracy, positive predictive value, negative predictive value (using 2x2 tables).