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Original ArticleOpen Access
Accuracy of Multidetector Computed Tomography Cholangiography in Evaluation of Cause of Biliary Tract Obstruction
Tongdee T 
,
Amornvittayachan O ,
Tongdee R
,
Amornvittayachan O ,
Tongdee R Objective: To evaluate accuracy of multidetector computed tomography (MDCT) cholangiography in evaluation of cause of
biliary tract obstruction.
Material and Method: MDCT cholangiographs of 50 patients with clinically suspected biliary tract obstruction were
retrospectively reconstructed and reviewed. The causes of obstruction identified by MDCT were divided into three groups
including calculus, benign stricture, and malignancy. Final diagnosis was based on pathological diagnosis or endoscopic
retrograde cholangiopancreatography or follow-up. The MDCT diagnosis and final diagnosis were compared.
Results: The sensitivity, specificity, positive predictive value, and negative redictive value of MDCT cholangiography for
detection of calculus, benign stricture, and malignancy were 91.7-100%, except for sensitivity and positive predictive value
for detection of benign stricture, which were 66.7% and 66.7% respectively.
Conclusion: MDCT cholangiography is a fast, noninvasive technique that offers high diagnostic accuracy in evaluation of
cause of biliary tract obstruction.
Keywords: Biliary tract obstruction, Multidetector computed tomography cholangiography, Jaundice
biliary tract obstruction.
Material and Method: MDCT cholangiographs of 50 patients with clinically suspected biliary tract obstruction were
retrospectively reconstructed and reviewed. The causes of obstruction identified by MDCT were divided into three groups
including calculus, benign stricture, and malignancy. Final diagnosis was based on pathological diagnosis or endoscopic
retrograde cholangiopancreatography or follow-up. The MDCT diagnosis and final diagnosis were compared.
Results: The sensitivity, specificity, positive predictive value, and negative redictive value of MDCT cholangiography for
detection of calculus, benign stricture, and malignancy were 91.7-100%, except for sensitivity and positive predictive value
for detection of benign stricture, which were 66.7% and 66.7% respectively.
Conclusion: MDCT cholangiography is a fast, noninvasive technique that offers high diagnostic accuracy in evaluation of
cause of biliary tract obstruction.
Keywords: Biliary tract obstruction, Multidetector computed tomography cholangiography, Jaundice
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