摘要
目的：评价64层螺旋CT血管成像在测量和计算冠状动脉相关弹性参数中的价值。方法：选取2008年9月-2009年10月本院行冠状动脉CT血管成像检查患者资料共86例,通过测量冠状动脉344节段在收缩期、舒张期的动脉管径变化,分析冠状动脉各段相关动脉弹性参数及其与脉压及平均动脉压的相关性,分析冠状动脉顺应性与收缩压的相关性,包括左主干、左前降支、左回旋支及右冠状动脉。结果：冠状动脉各支血管顺应性参数间存在差别,Friedman T检验,P=0.001,冠状动脉各支血管顺应性与脉压及平均动脉压呈负相关,其余冠状动脉弹性相关参数与脉压及平均动脉压相关性较差;冠状动脉顺应性与收缩压呈负相关（P〈0.05）。结论：64层螺旋CT血管成像可作为一种冠状动脉管腔测量的有效方法,冠状动脉顺应性可较好反映正常冠状动脉血管壁弹性。
Objective：To explore the value of 64-slice spiral CT angiography in evaluation of coronary artery elasticity by measuring and calculating coronary artery elastic parameters.Methods：64-slice spiral CT angiography was performed in 86 patients from September 2008 to October 2009.Diameter changes of 344 segment of coronary artery in the systolic and diastolic phases were measured by CT coronary angiography.Correlations between coronary artery elastic parameters and pulse pressure and mean arterial pressure were analyzed,and correlations between coronary artery compliance and systolic blood pressure were analyzed,including the left main artery,left anterior descending artery,left circumflex artery and right coronary artery.Results：Coronary artery compliances in the various branches were different and P=0.001（P〈0.05） in the Friedman Test,coronary artery compliances and pulse pressure and mean arterial pressure were negatively correlated.Coronary artery compliances and systolic blood pressure were negatively correlated（P0.05）.The remaining coronary artery elastic parameters and pulse pressure and mean arterial blood pressure were less relevant.Conclusion：64-slice spiral CT angiography can be used as an effective means of measuring coronary lumen.Coronary artery compliance can reflect the elasticity of normal coronary vessel walls.
出处
《放射学实践》
北大核心
2010年第12期1349-1353,共5页
Radiologic Practice
