UTILITY OF MAGNETIC RESONANCE CHOLANGIOPANCREATOGRAPHY IN THE EVALUATION OF BILIARY TRACT OBSTRUCTION
Keywords:
Magnetic Resonance Cholangiopancreatography, Endoscopic Retrograde Cholangiopancreatography, Obstructive JaundiceAbstract
Objectives: To evaluate the accuracy of Magnectic Resonance Cholangiopancreatography (MRCP) in the detection
of bile duct calculi and strictures using Endoscopic Retrograde Cholangiopancreatography (ERCP) and operative
findings as gold standard.
Materials and Methods: A total of 110 patients aged between 25 years and 75 years with clinical and laboratory
suspicion of obstructive jaundice, were investigated using MRCP in the Radiology Department of Khyber Teaching
Hospital, Peshawar, Pakistan. The study was conducted from January 2007 to March 2008. The findings of MRCP
were confirmed using ERCP and open surgery.
Results: Final diagnoses were normal bile ducts (n=12), choledocholithiasis (n=38), benign and malignant
stenosis (n=60). The overall sensitivity and specificity of MRCP for stenosis were found to be 98% and 92%
respectively. The sensitivity and specificity for detection of biliary tract calculi were found to be 95% and 92%
respectively.
Conclusion: The lower cost, absence of ionizing radiation, operator independence and greater safety for patients
make MRCP an attractive alternative to diagnostic ERCP.
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