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Contrast-enhanced MRI combined with MR cholangiopancreatography for the evaluation of patients with biliary strictures: Differentiation of malignant from benign bile duct strictures

Authors
 Ji Yang Kim  ;  Jeong Min Lee  ;  Byung Ihn Choi  ;  Ki Hyeun Kim  ;  Hyuck Jung Kim  ;  Soo Jin Kim  ;  Jin Young Choi  ;  Jae Young Lee  ;  Se Hyung Kim  ;  Joon Koo Han 
Citation
 JOURNAL OF MAGNETIC RESONANCE IMAGING, Vol.26(2) : 304-312, 2007 
Journal Title
JOURNAL OF MAGNETIC RESONANCE IMAGING
ISSN
 1053-1807 
Issue Date
2007
MeSH
Adult ; Aged ; Aged, 80 and over ; Bile Duct Diseases/diagnosis* ; Bile Duct Diseases/pathology ; Bile Ducts/pathology* ; Biliary Tract Diseases/diagnosis* ; Biliary Tract Diseases/pathology ; Cholangiopancreatography, Magnetic Resonance/methods* ; Cholestasis/pathology ; Contrast Media/pharmacology ; Female ; Humans ; Liver/metabolism ; Magnetic Resonance Imaging/methods* ; Male ; Middle Aged
Keywords
bile duct ; MR ; bile duct ; MRCP ; bile duct ; stricture ; contrast-enhanced magnetic resonance imaging ; bile duct neopla는
Abstract
PURPOSE:
To determine imaging criteria for the combined use of contrast-enhanced (CE)-MRI and MR cholangiopancreatography (MRCP) to differentiate malignant from benign biliary strictures.
MATERIALS AND METHODS:
A total of 44 patients with biliary stricture who had undergone unenhanced, MRCP, and dynamic MRI were identified from radiological and surgical databases. Two radiologists analyzed MR features for asymmetry, luminal irregularity, abrupt narrowing, outer margin, signal intensity (SI) on T2-weighted (T2W) images, and hyperenhancement relative to liver parenchyma during portal phase. The wall thickness and length of the narrowed segment were measured. MR findings relevant as predictors were identified using a Chi-square or Fisher's exact test and the odds ratio (OR).
RESULTS:
The presence of hyperenhancement relative to liver parenchyma, length > 12 mm, wall thickness > 3 mm, indistinct outer margin, luminal irregularity, and asymmetry of strictured bile duct were significant factors for malignancy (P < 0.05). Malignant strictures were significantly thicker (5.0 +/- 2.0 mm) and longer (27.0 +/- 13.6 mm) than benign strictures. When any three or more of these six criteria were used in combination, we could identify 100% of malignant strictures and 87.0% of benign strictures.
CONCLUSION:
The combined use of CE-MRI and MRCP helped to define the criteria for differentiating malignant from benign biliary strictures in our data.
Full Text
http://onlinelibrary.wiley.com/doi/10.1002/jmri.20973/abstract
DOI
10.1002/jmri.20973
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Choi, Jin Young(최진영) ORCID logo https://orcid.org/0000-0002-9025-6274
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/96464
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