64层螺旋CT数字减影术对颅内动脉瘤诊断价值研究

JOURNAL OF PRACTICAL RADIOLOGY(2009)

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Abstract
目的 评价64层螺旋CT数字减影技术对颅内动脉瘤的诊断价值.方法 对36例蛛网膜下腔出血患者行64层螺旋CT平扫及增强扫描,每例患者均行常规CTA及减影CTA(digital subtraction CTA,DSCTA)重建,以DSA检查结果为标准,对比研究2种重建技术的图像质量、诊断准确性.结果 36例患者共计40个动脉瘤,经DSCTA检出动脉瘤40个,灵敏度、特异度分别为100%,经常规CTA检出动脉瘤37个,灵敏度、特异度分别为92.5%和100%.2组后处理图像质量单项有序行乘列表秩和检验有显著性差异(P<0.01),DSCTA图像质量优于常规CTA.结论 64层螺旋CT DSCTA可作为筛查及诊断动脉瘤的首选方法.
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Key words
intracranial aneurysms,digital subtraction,tomography,X-ray computed
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