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血清心肌肌钙蛋白I定量检测在急性心肌梗死中的临床应用

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摘要 目的分析急性心肌梗死(AMI)患者血清中心肌肌钙蛋白I(CTnI)的含量变化,并应用受试者工作特征曲线(ROC曲线)分析CTnI在AMI诊断中的价值。方法采用微粒子酶免疫法(MEIA法)分别测定患者组(包括AMI 组和非AMI组)和健康对照组血清CTnI,并用ROC曲线进行分析。结果AMI组血清CTnI明显高于非AMI组和健康对照组(P<0.01),非AMI组高于健康对照组(P<0.05)。CTnI单侧99%参考范围上限≤0.04μg/L,距离ROC曲线左上角最近的点为0.38μg/L,诊断敏感性为94.1%,特异性为95.5%。结论CTnI定量分析在AMI诊断中有较高的临床应用价值。CTnI浓度0.38μg/L可作为诊断AMI的参考上限。
出处 《哈尔滨医科大学学报》 CAS 北大核心 2005年第4期374-375,共2页 Journal of Harbin Medical University
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