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Gd-EOB-DTPA增强MRI评估肝段肝功能的可行性及可重复性研究 被引量:1

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摘要 目的:探讨钆塞酸二钠(gadolinium-ethoxybenzyl-diethylenetriamine-pentaacetic,Gd-EOB-DTPA)增强磁共振成像(magnetic resonance imaging,MRI)评估肝段肝功能的价值及可重复性。方法:自2015年8月—2018年8月共收集行Gd-EOB-DTPA增强MRI检查患者84例,其中无慢性肝病肝功能正常(normal liver function,NLF)者(对照组,NLF组)15例,乙型肝炎肝硬化肝功能异常者69例,Child-Pugh A级(CPA组)33例、B级(CPB组)26例、C级(CPC组)10例,所有患者根据临床需要行Gd-EOB-DTPA增强MRI检查,且获取影像学检查前后1周内血清学检查指标。测得肝脏各肝段增强后20 min肝脏肌肉信号比增加率(increase rate of liver-to-muscle ratio,△LMR)(△LMR20 min),肝脏各肝段△LMR20 min的比较采用单因素方差分析,不同肝段间的比较采用建立只考虑主效应的两因素方差分析模型,两两比较采用LSD法;△LMR20 min鉴别NLF-CPA和CPB-CPC组的诊断效能采用受试者工作特征曲线(receiver operating characteristic curve,ROC曲线)分析;△LMR与终末期肝病模型(model for end-stage liver disease,MELD)评分进行Spearman秩相关分析。对25例间隔半年以内行两次Gd-EOB-DTPA增强MRI检查的患者的测量参数进行可重复性分析。结果:不同肝功能组各肝段△LMR20 min比较差异均有统计学意义(均P<0.05);NLF、CPA、CPB组肝脏8段间△LMR20 min比较差异均有统计学意义(均P<0.05),CPC组段间比较差异无统计学意义(P>0.05);△LMR20 min对鉴别NLF-CPA和CPB-CPC组的诊断效能较好。△LMR20 min与MELD评分呈负相关(P<0.05)。配对t检验分析得出25例患者前后两次△LMR20 min比较差异均无统计学意义(均P>0.05);两次测量△LMR20 min的可重复性较好。结论:Gd-EOB-DTPA增强MRI可以描述不同肝段肝功能,且对肝功能的评估可重复性较好。
出处 《南通大学学报(医学版)》 2021年第6期534-538,共5页 Journal of Nantong University(Medical sciences)
基金 南通市卫生健康委员会青年课题(QA2020025)。
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