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冠状动脉64层螺旋CT成像质量与心率关系 被引量:1

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摘要 目的探讨冠状动脉螺旋CT成像质量与心率的关系。方法随机抽取冠状动脉64层螺旋CT成像250例,排除呼吸运动影响及心律失常者,按照平均心率(次/min)分5组(≤60,~65,~70,~75,>75),分析各支冠状动脉各段显示情况。结果心率≤70次/min共812支血管,图像质量3级以上3支;~75次/min共140支血管,图像质量3级以上8支;>75次/min共47支血管,图像质量3级以上10支。心率>70次/min图像质量开始受到影响(<0.05),心率>75次/min明显受到影响(<0.01)。结论64层螺旋CT冠状动脉成像时心率快慢及心率稳定与否影响成像质量,有效心率控制并维持心率稳定能保证良好的冠脉图像质量。
出处 《现代实用医学》 2008年第9期705-706,708,共3页 Modern Practical Medicine
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参考文献10

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