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慢性肾脏病肾皮髓质表观弛豫率与肾功能的相关性研究 被引量:2

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摘要 目的 探讨慢性肾脏病(CKD)患者肾皮髓质表观弛豫率(R2*值)的变化规律及其与肾功能的相关性.方法 选取临床确诊的CKD患者40例(CKD组)和健康志愿者25例(对照组),均行磁共振血氧水平依赖成像(BOLD MRI)检查,测量两组肾皮质及肾髓质R2*值,并分析肾皮髓质R2*值与肾功能指标间的相关性.结果 对照组肾皮质R2*值小于肾髓质R2*值(15.32±1.10比27.54±1.18),差异有统计学意义(P<0.05).CKD组肾皮质及肾髓质R2*值(18.21±3.08,30.33±4.85)均明显高于对照组,差异有统计学意义(P<0.05).CKD患者肾皮质R2*值与血清肌酐(SCr)水平、肾小球滤过率估算值(eGFR)无相关性(r=0.168,-0.175,P=0.244,0.224);与CKD分期呈显著正相关(r=0.240,P=0.043).肾髓质R2*值与SCr水平、CKD分期呈显著负相关(r=-0.357,-0.548,P=0.007,0.000),与eGFR呈显著正相关(r=0.600,P=0.000).结论 肾皮髓质R2*值能在一定程度上反映CKD患者肾功能的损伤程度,为CKD肾脏病变程度的评估提供了一种新方法.
出处 《中国医师进修杂志》 2014年第13期53-55,共3页 Chinese Journal of Postgraduates of Medicine
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