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多层螺旋CT评价冠状动脉血流动力学的研究进展
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- Author:
- No author available
- Journal Title:
- Chinese Journal of Radiology
- Issue:
- 5
- DOI:
- 10.3760/cma.j.issn.1005-1201.2013.05.017
- Key Word:
- No keyword available
Abstract： 冠状动脉管腔狭窄程度只是导致心肌缺血的相关原因之一,内皮及血管舒缩等功能异常也是相关因素.目前已认识到选择性冠状动脉造影不能可靠地预测管腔狭窄是否导致心肌缺血,特别是对临界狭窄更是如此[1-3].尽管目前冠状动脉CTA形态学评估对比冠状动脉造影具有较高准确度,但和功能学方法比较,其特异度和阳性预测值则较低,也不能有效预测与特定狭窄相关的心肌缺血[4].
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