Tschirch Frank T C, Struwe Anja, Petrowsky Henrik, Kakales Irini, Marincek Borut, Weishaupt Dominik
Institute of Diagnostic Radiology, University Hospital Zürich, Rämistrasse 100, 8091, Zürich, Switzerland.
Eur Radiol. 2008 Aug;18(8):1577-86. doi: 10.1007/s00330-008-0929-6. Epub 2008 Mar 28.
The purpose of this study was to assess the quality of biliary duct visualization using Gd-EOB-DTPA-enhanced magnetic resonance cholangiography (EOB-MRC) in patients with liver cirrhosis. Forty adult patients with liver cirrhosis (cirrhosis group) and 20 adult individuals with normal liver parenchyma (control group) underwent EOB-MRC using T1-weighted GRE imaging up to 180 min after Gd-EOB-DTPA administration. Two observers assessed the visualization of each biliary structure and the overall anatomical visualization of the biliary tree. Child-Pugh, MELD score and laboratory findings were compared. The grade of visualization for each evaluated biliary structure was statistically different in the two groups (P = 0.004 to <0.001). The overall EOB-MRC quality was rated as sufficient for anatomical visualization of the biliary tree in all individuals of the control group 20 min after Gd-EOB-DTPA application, but in only 16/40 patients (40%) of the cirrhosis group within 30 min after application. Analysis of the ROC curves revealed that the cut-off values, for non-sufficient visualization of the biliary tree 20 min after Gd-EOB-DTPA application, were MELD scores > or =11 and total serum bilirubin levels > or =30 micromol/l. Consecutively, EOB-MRC in patients with liver cirrhosis resulted in a decreased or even non-visualization of the biliary tree in a substantial percentage of patients.
本研究的目的是评估钆塞酸二钠增强磁共振胰胆管造影(EOB-MRC)对肝硬化患者胆管可视化的质量。40例成年肝硬化患者(肝硬化组)和20例肝实质正常的成年个体(对照组)在注射钆塞酸二钠后180分钟内使用T1加权梯度回波成像进行EOB-MRC检查。两名观察者评估每个胆管结构的可视化情况以及胆管树的整体解剖可视化情况。比较了Child-Pugh评分、终末期肝病模型(MELD)评分和实验室检查结果。两组中每个评估胆管结构的可视化分级存在统计学差异(P = 0.004至<0.001)。在对照组所有个体中,注射钆塞酸二钠20分钟后,EOB-MRC的整体质量被评为足以对胆管树进行解剖可视化,但在肝硬化组中,仅40例患者中的16例(40%)在注射后30分钟内达到该标准。ROC曲线分析显示,注射钆塞酸二钠20分钟后胆管树可视化不足的临界值为MELD评分≥11分和总血清胆红素水平≥30微摩尔/升。连续观察发现,肝硬化患者的EOB-MRC在相当一部分患者中导致胆管树可视化减少甚至无法可视化。