与双动脉期多层螺旋计算机断层扫描相比，双动脉期钆乙氧基苄基二乙三胺五乙酸增强肝脏磁共振成像的效能
Efficacy of double-arterial phase gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid-enhanced liver magnetic resonance imaging compared with double-arterial phase multi-detector row helical computed tomography.
作者信息
Akai Hiroyuki, Kiryu Shigeru, Takao Hidemasa, Tajima Taku, Shibahara Jyunji, Imamura Hiroshi, Kokudo Norihiro, Akahane Masaaki, Ohtomo Kuni
机构信息
Department of Radiology, Graduate School of Medicine, University of Tokyo, Tokyo, Japan.
出版信息
J Comput Assist Tomogr. 2009 Nov-Dec;33(6):887-92. doi: 10.1097/RCT.0b013e3181a1ca7e.
OBJECTIVE
To evaluate the efficacy of double-arterial phase gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid-enhanced magnetic resonance imaging (MRI) using 3-dimensional gradient-echo sequences compared with double-arterial phase multi-detector row helical computed tomography (CT).
METHODS
This study included 15 patients with 24 surgically proven hepatocellular carcinomas. Dynamic MRI and CT were evaluated by 2 observers using a 4-point scale. We compared the scores of double-arterial phase MRI and CT for each observer and determined whether a significant difference existed.
RESULTS
Using MRI, 83% and 79% of the lesions were considered hypervascular by the two observers versus 88% for both observers using CT. The difference between MRI and CT was not significant.
CONCLUSIONS
Double-arterial phase gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid-enhanced MRI is as useful as double-arterial phase multi-detector row helical CT for detecting the hypervascularity of hepatocellular carcinoma.
目的
评估使用三维梯度回波序列的双动脉期乙氧基苄基二乙三胺五乙酸钆增强磁共振成像（MRI）与双动脉期多排螺旋计算机断层扫描（CT）相比，在检测肝细胞癌血供丰富情况方面的效能。
方法
本研究纳入了15例患者，共24个经手术证实的肝细胞癌。2名观察者使用4分制对动态MRI和CT进行评估。我们比较了每位观察者对双动脉期MRI和CT的评分，并确定是否存在显著差异。
结果
使用MRI时，两名观察者分别认为83%和79%的病灶血供丰富，而使用CT时两名观察者均认为88%的病灶血供丰富。MRI与CT之间的差异不显著。
结论
双动脉期乙氧基苄基二乙三胺五乙酸钆增强MRI在检测肝细胞癌血供丰富情况方面与双动脉期多排螺旋CT同样有效。
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