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椭圆中心对比增强MPA在颈动脉狭窄诊断中的应用

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摘要 目的:研究椭圆中心(elliptical-centric)对比增强磁共振血管成像(contrast enhanced magnetic resonance angiography,CE-MRA)在颈动脉狭窄诊断中的应用价值,探讨椭圆中心CE-MRA的优势。方法对2005年11月至2007年3月期间44例临床疑有颈动脉狭窄的患者行椭圆中心CE-MRA检查,其中26例患者行DSA检查。26例可评价病例以DSA作为金标准进行对照。结果44例患者椭圆中心CE-MRA均满意地显示了颈部动脉血管节段。26例椭圆中心CE-MRA共观察52条血管节段,显示可比动脉节段32条,与DSA比较,对狭窄程度诊断的符合率为87.5%(28/32),与DSA结果进行一致性检验,计算Kappa值为0.92,具有很好的一致性:椭圆中心CE-MPA诊断狭窄的敏感度为100%(30/30),特异度为90.9%(15/17),阳性预测值为93.8%(30/32),阴性预测值为100%(20/20)结论椭圆中心CE-MRA与DSA比较,具有很好的一次性,能较准确地评价颈动脉狭窄,是一种有价值的、可靠的、无创的检查方法。
出处 《新疆医学》 2008年第8期1-3,共3页 Xinjiang Medical Journal
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