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64层CT冠状动脉造影仿真血管内超声技术的应用价值 被引量:2

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摘要 目的探讨64层螺旋CT冠状动脉造影仿真血管内超声技术(冠状动脉CTA V-IVUS)在冠状动脉粥样硬化斑块定性、定量分析中的价值。方法从2008年12月至2011年6月所做1 015例冠状动脉CTA中选出正常20例、冠状动脉粥样硬化软斑块20例、纤维斑块10例、混合斑块10例、点状钙化斑块10例和条、块状斑块10例,并从异常病例中选出冠状动脉管壁不规则正性重构17例和负性重构10例,共107例。在冠状动脉CTA曲面重建图像上移动取样线获取各支冠状动脉各处的横断面仿真血管内超声图像,分析冠状动脉管壁和冠状动脉斑块的形态,测量冠状动脉管壁的厚度、斑块的大小和面积、正常管腔面积和斑块处管腔面积和外弹力膜包绕的面积。结果冠状动脉CTA V-IVUS以不同的颜色分别显示冠状动脉管壁、管腔及斑块的形态、斑块伴随的异常以及冠状动脉与毗邻结构的关系等;通过公式计算可获得血管重构的类型、狭窄面积等定量指标。结论冠状动脉CTA V-IVUS在冠状动脉斑块病变的定量评估中有一定的价值;结合冠状动脉CTA的其他功能可对冠状动脉斑块病变作出更为全面的定性、定量评估。
出处 《南昌大学学报(医学版)》 CAS 2012年第3期69-72,共4页 Journal of Nanchang University:Medical Sciences
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