Journal List > J Korean Radiol Soc > v.50(5) > 1003943

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Park, Kim, Yu, Kim, Kim, Ha, Kim, Lee, and Yoo: Mn-DPDP Enhanced T1-weighted Magnetic Resonance Cholangiography: Usefulness in the Diagnosis and Roadmap for the Treatment of Intrahepatic Choledocholithiasis
Original Article

Journal of the Korean Radiological Society 2004; 50(5): 353-357.

Published online: 31 May 2004

DOI: https://doi.org/10.3348/jkrs.2004.50.5.353

Mn-DPDP Enhanced T1-weighted Magnetic Resonance Cholangiography: Usefulness in the Diagnosis and Roadmap for the Treatment of Intrahepatic Choledocholithiasis

Mi Suk Park, Ki Whang Kim, Jeong Sik Yu, Kyoung Won Kim, Tae Kyoung Kim, Hyun Kwon Ha, Myeong Jin Kim, Jong Tae Lee, Hyung Sik Yoo1

Department of Diagnostic Radiology and Research Institute of Radiological Science Yonsei University College of Medicine, Seoul, South Korea.

Department of Diagnostic Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea.

Corresponding author: radpms@yumc.yonsei.ac.kr

Copyright © 2004 by The Korean Society of Radiology

Abstract

Purpose

To assess the preliminary findings of Mn-enhanced T1-weighted MR cholangiography for the evaluation of intrahepatic choledocholithiasis.

Materials and Methods

Seven patients with recurrent pyogenic cholangitis underwent conventional heavily T2-weighted and manganese-enhanced T1-weighted MR cholangiography. For the former, the two reviewers focused on intrahepatic ductal dilatation, calculi, and stricture; and for the latter, ductal enhancement.

Results

In seven patients, 13 diseased segments were depicted and intrahepatic bile ductal dilatation was present in all 13 of these in all seven patients. Calculi were present in eight segments in six patients, and stricture in four segments in three patients. Of the 13 diseased segmental ducts, six were seen at manganese-enhanced imaging to be filled with contrast material, suggesting a functioning bile duct.

Conclusion

Combined T2-weighted and mangafodipir trisodium-enhanced T1-weighted MR cholangiography provides both anatomic detail and functional detail of the biliary system. Combined MR cholangiography is useful for the evaluation of intrahepatic choledocholithiasis, demonstrating the stricture and function of the segmental ducts involved.

Keywords: Bile ducts, calculi, Cholangitis, Magnetic resonance (MR), cholangiopancreatography

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