【摘要】 目的 评价菲立磁对肝肿瘤增强的MR诊断作用。方法 对28例不同肝肿瘤行T2W平扫，并与菲立磁增强后SE序列、梯度回波序列的不同时段T2W扫描图像比较，统计增强前后的不同扫描序列和扫描时段病灶显示数，测量平扫与不同扫描序列和不同扫描时段正常肝脏和病灶的信号强度。结果 SE序列平扫T2W共发现病灶35个，增强后SE序列共发现69个病灶，其中有5个病灶<1cm；梯度回波序列显示63个病灶，6个囊肿未显示。结论 菲立磁增强后可发现比平扫更多的病灶，可以把梯度回波序列作为常规序列使用。不同时段扫描不影响对各病灶检出。

    关键词 肝肿瘤 菲立磁/对比剂 磁共振成像

    The selections of different scanning sequences and phase in Feridex enhanced MRI to liver tumors

    Gao Mingyong，Zhang Yongfen，Cao Ran，et al.

    Department of Radiology,NO.1 Hospital of Foshan,Guangdong 528000.

    【Abstract】 Objective To evaluate the diagnostic efficacy of Feridex enhancement for liver tumor.Methods We observed T2-Weight imaging of 28 patients with liver tumor using SE sequence and GRE sequence before and after Feridex enhanced, added up lesions numbers in the different scanning sequences and examination phase, measured signal intensity of normal liver and lesions.Results 35 lesions were shown on SE T2W images of plain scanning and 69 lesions were shown after contrast media,5 of them less than 1cm.63 lesions were shown on GRE sequences T2W imaging after contrast,but 6 lesions with cyst didn’t be showed.Conclusion The number of showing lesions after Feridex enhanced images was more than plain scanning.GRE sequence may be used as a routine sequence after Feridex.The different scanning phase images of post-contrast didn’t affect showing of lesions. ......