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肝硬化再生结节45例的核磁共振(MRI)成像分析 被引量:8

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摘要 目的:总结肝硬化再生结节和肝癌结节的核磁共振(MRI)表现并探讨MRI的诊断价值。方法:回顾性分析45例结节性肝硬化患者MR检查资料,所有检查均行脂肪抑制的T1WI、T2WI,正反相位T1WI及动态增强扫描和弥散加权(DWI)扫描,总结肝内结节的信号特点。结果:在常规脂肪抑制下肝硬化结节T1WI多为等或稍高信号,T2WI多为低信号;增强扫描门静脉期及延迟期在强化的肝实质对比下显示为低信号结节,动脉期无强化。癌结节T1WI多为稍低或等信号,偶有稍高信号,T2WI多为较高信号;增强扫描动脉期明显强化,门静脉期及延迟期强化减退。DWI序列上癌结节呈高信号,而再生结节呈低信号。结论:核磁共振成像可以对肝硬化再生结节的良恶性鉴别及对恶性结节的疗效评价作出明确诊断。
出处 《吉林医学》 CAS 2011年第23期4833-4834,共2页 Jilin Medical Journal
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