Diagnosis of Focal Liver Lesions With Gadoxetic Acid-Enhanced MRI: Is a Shortened Delay Time Possible by Adding Diffusion-weighted Imaging?

被引:7
|
作者
Kim, Moon Young
Kim, Young Kon [1 ]
Park, Hyun Jeong
Park, Min Jung
Lee, Won Jae
Choi, Dongil
机构
[1] Sungkyunkwan Univ, Sch Med, Dept Radiol, Samsung Med Ctr, Seoul, South Korea
关键词
Gd-EOB-DTPA; liver MRI; diffusion-weighted imaging; hepatobiliary phase; hepatocellualr carcinoma; chronic liver disease; GD-EOB-DTPA; HEPATOCELLULAR-CARCINOMA; HEPATOBILIARY PHASE; ACCURACY; EFFICACY; DISEASE; TUMORS; CM;
D O I
10.1002/jmri.24122
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
PurposeTo determine whether the diagnostic performance of combined gadoxetic acid-enhanced dynamic phases and diffusion-weighted imaging (DWI) is comparable to the standard protocol with hepatobiliary phase (HBP) and DWI for detection and characterization of focal liver lesions in chronic liver disease. Materials and MethodsA total of 176 patients with 181 HCCs, 15 cholangiocarcinomas, and 32 benign lesions were included. Three combined gadoxetic acid-enhanced and DWI sets (dynamic phases [arterial, portal, and 3-min delay {3-min set} and dynamic phases with 10-min HBP [10-min set] or 20-min HBP [20-min set]) were analyzed by two observers to determine the diagnostic accuracy and sensitivity in detection of malignancy, and ability for lesion characterization. ResultsThere was a trend, although not statistically significant, toward highest diagnostic accuracy and sensitivity for detecting malignancies in the 20-min set (mean, 0.945, 96.2), followed by the 10-min set (0.937, 95.9), and the 3-min set (0.923, 94.1) (P>0.05). For lesion characterization, three image sets were equivalent (P>0.05). ConclusionFor lesion detection and characterization in chronic liver diseases, 3-min set with DWI showed comparable efficacy to 10-min or 20-min set. However, the best diagnostic performance could be achieved by combination of all image sets. J. Magn. Reson. Imaging 2014;39:31-41. (c) 2013 Wiley Periodicals, Inc.
引用
收藏
页码:31 / 41
页数:11
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