Sensitivity and Specificity of Magnetic Resonance Cholangiopancreatography against Endoscopic Retrograde Cholangiopancreatography in Diagnosing Choledocholithiasis

Background: Various imaging modalities including EUS (Endoscopic ultrasound), CT abdomen (Computed tomography), MRCP (Magnetic resonance cholangiopancreatography), and ERCP retrograde cholangiopancreatography) are used for diagnosis of choledocholithiasis. allows direct visualization bile duct through endoscope, it also helps in retrieval stones. On the other hand, is a noninvasive procedure which uses strong magnetic field to visualize hepatobiliary system. In patients with choledocholithiasis calculi appear as dark filling defects within high signal intensity fluid at MRCP. This study compares diagnostic accuracy comparison aims compare sensitivity specificity diagnosing choledocholithiasis.
 Methodology: comparative cross-sectional included 170 clinical who presented Liver Center, Holy Family Hospital, Rawalpindi, during year 2017. Non-probability consecutive sampling technique set established inclusion exclusion criteria was enroll patients. Data collected by self-structured questionnaire. Information about demographic details findings were noted on that analysis done using SPSS 25.
 Results: Out patients, 111 (65.29%) females 59 (34.71%) males. The mean age population 45.68 standard deviation (SD) ±12.40. confirmed stones 95 while case 87 true positives, 55 negatives, 20 false 8 negatives cases noted. According these results, 91.6% 73.3% respectively against ERCP. Whereas positive predictive value negative values 81.3 87.3% ERCP.
 Conclusion: has compared Although comparatively procedure, but remains modality choice could be instead when there contraindications or no therapeutic role required.
 Recommendations: should only needed. Level expertise increased