Magnetic resonance cholangiography of biliary strictures after liver transplantation: A prospective double-blind study

被引:39
作者
Kitazono, Mary T.
Qayyum, Aliya
Yeh, Benjamin M.
Chard, Paul S.
Ostroff, James W.
Coakley, Fergus V.
机构
[1] Univ Calif San Francisco, Dept Radiol, San Francisco, CA 94143 USA
[2] Univ So Calif, Keck Sch Med, Los Angeles, CA USA
[3] Univ Calif San Francisco, Dept Gastroenterol, San Francisco, CA 94143 USA
关键词
magnetic resonance cholangiopancreatography; endoscopic retrograde cholangiopancreatography; liver transplantation; bile duct stricture; three dimensional imaging;
D O I
10.1002/jmri.20927
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
Purpose: To compare magnetic resonance cholangiography (MRC) with endoscopic retrograde cholangiography (ERC) in quantitatively evaluating biliary strictures in liver transplant recipients. Materials and Methods: Eight liver transplant recipients with suspected biliary complications were referred for ERC and also underwent MRC within 24 hours using a combination of single-shot rapid acquisition with relaxation enhancement (SS-RARE) and three-dimensional (3D)-RARE sequences. The studies were independently interpreted by two blinded radiologists and a single blinded endoscopist who recorded the presence of a stricture and/or upstream dilatation, the ratio of recipient-to- donor duct diameters at the anastomosis, as well as the proximal duct diameter, length, and percent stenosis of any stricture detected. Results: Using ERC as the standard of reference, MRC had a sensitivity and negative predictive value of 100%, mean specificity of 83.3%, and mean positive predictive value of 92.9% in the detection of six strictures. Compared with ERC, MRC obtained accurate measurements of recipient-to-donor duct diameter ratios (r, 0.91; P < 0.01), proximal duct diameters (r, 0.83, P < 0.05), stricture lengths (r, 0.58; P = 0.06), and percent stenosis (r, 0.78: P = 0.06). Conclusion: MRC can provide equivalent imaging to ERC and can reliably identify and quantitatively evaluate biliary strictures in post-orthotopic liver transplantation (OLT) patients.
引用
收藏
页码:1168 / 1173
页数:6
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