Diagnostic Accuracy of Ultrasound in Evaluation of Obstructive Jaundice with MRCP as a Gold Standard

Abstract Background MRCP has high sensitivity for CBD stones, strictures and malignancies in cases of obstructive jaundice especially cases with suspicion (clinical/CBD-IHBR dilatation on USG). As MRCP has more diagnostic accuracy compared to ultrasound in detecting the cause of obstruction in cases of obstructive jaundice, USG may be considered as an initial screening test and MRCP for definitive treatment planning. The limitation of the study is the small sample size. Objective To evaluate cross sectional retrospective study was done From June 2021 to June 2022 on 31 patients (17 females and 14 males) presenting with obstructive jaundice were referred from Internal Medicine, General Surgery and Clinical Oncology Department to Diagnostic Radiology Department in Ain Shams University hospitals, MRCP were done for all the patients and then Abdominal US examination were performed and then comparison between US & MRCP result were done. Results The US has sensitivity of 100.0%, specificity of 100.0% and accuracy of 100.0 % in detection of level of obstruction and also has sensitivity of 71.0% and accuracy of 71.0% in detecting cause of obstruction taking MRCP as a gold standard. Conclusion MRCP is an excellent tool for detecting the cause of obstructive jaundice, Use of MRCP could therefore spare the patients from invasive preoperative endoscopic procedures and it can also most likely reduce overall surgical costs. We propose MRCP as the method of choice for the diagnostic imaging of obstructive jaundice.