The Radiological Assessment to Determine the MRCP's Accuracy over USG and CT in Diagnosing the Patients Suffering from Obstructive Jaundice

Received: 18-05-2021 / Revised: 20-06-2021 / Accepted: 25-07-2021 Corresponding author: Dr. Ratna Priya Conflict of interest: Nil Abstract Aim: The aim of the radiological Study to Establish the Accuracy of MRCP over USG & CT in Diagnosing the Case of Obstructive Jaundice. Methods: A cross-sectional prospective study was conducted in the Department of Radiology, Narayan medical college & Hospital, Jamuhar, Sasaram, Bihar, India, for 15 months. 50 patients clinically diagnosed as suffering from obstructive jaundice and total Bilirubin greater than 5mg/dl were included in this study. All the patients in the study underwent USG examination first followed by MRCP and finally CT. Results: Of the 50, seventeen patients had benign lesions while 26 patients had malignant lesions. While MRCP and CT had diagnosed 48 of the seventeen lesions, USG could diagnose all the benign lesions. However, USG had diagnosed several of the malignant lesions as benign. MRCP has 98% accuracy in detecting the site of obstruction followed by CT and USG. The sensitivity of MRCP and CT is the same for both modalities while it is 98%forUSG. In spite of the high sensitivity for USG, the specificity for the same is very low at 64% when compared to that of CT’s 64% and MRCP’s 98%. Thus, USG is a very good screening tool for benign lesions for obstructive jaundice while CT and MRCP are the specific investigations. The MRCP is again the most accurate investigation with an accuracy up to 98%. The sensitivity and specificity of MRCP is high making it more accurate while USG and CT have high sensitivity their specificities are low. The MRCP has the largest area among the three investigations, proving it to be the most efficient investigation in the detection of malignant lesions. Conclusion: In the diagnosis of obstructive jaundice and to know the cause, site and extent of the lesion MRCP being a non-invasive, non-ionizing procedure seems to be a better choice over other radiological procedures like USG, CT or ERCP.