周婷婷;王建良;杨毅;赵文露;沈钧康;

• 1:昆山市第一人民医院放射科
• 2:苏州大学附属第二医院影像科

摘要(Abstract)：

目的评价1.5 T MRI常用检查序列:常规T2WI、DWI、动态增强扫描(DCEI)在肝脏局灶性病变(FLLs)诊断中的应用价值。材料与方法由2名研究者分析23例FLLs患者肝脏T2WI、DWI和DCEI图像,按Couinaud八段分法分别记录所有检出的病灶并测量其直径,将结果与"标准诊断"对照,计算单独应用T2WI、DWI和DCEI,以及DCEI联合DWI四种检查方法的病灶检出率。对所有检出的病灶按5分法对其良恶性进行评分,作受试者工作特征(ROC)曲线分析。采用SPSS 16.0统计软件和SASS统计软件包对数据进行统计学分析,P≤0.05差异有统计学意义。结果 T2WI、DWI、DCEI三种方法检出率两两比较,DWI序列对直径≤5 mm病灶检出率较T2WI低(P=0.004),其余三种检查方法的各项检出率之间的差异均无统计学意义(P≥0.052)。DCEI联合DWI的各项检出率均为100%,总检出率均较T2WI、DWI和DCEI序列单独应用时高,且差异有统计学意义(P≤0.006);对良性病灶和直径≤5 mm病灶的检出率较DWI高,差异有统计学意义(P≤0.029)。DCEI联合DWI的Az值(0.982)最大,与DCEI间差异无统计学意义(P=0.075),与DWI、T2WI间的差异有统计学意义(P≤0.0199)。结论单独运用DWI或DCEI序列相对于常规T2WI,并不能提高MRI对FLLs的检出率。DCEI联合DWI序列相对于单独应用T2WI、DWI或DCEI序列能提高MRI对FLLs的总检出率。DCEI联合DWI相对于DWI序列能提高良性病灶和直径≤5 mm病灶的检出率,提高了MRI对FLLs的诊断效能。

关键词(KeyWords)： 肝肿瘤;磁共振成像

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 周婷婷;王建良;杨毅;赵文露;沈钧康;

Email:

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