320排容积CT 5%和10% R-R间期间隔重组定量评估左心室功能的对比研究

发布时间：2018-06-23 01:44

本文选题：体层摄影术 + X线计算机　；参考：《临床放射学杂志》2017年09期

【摘要】：目的探讨320排容积CT 5%和10%R-R间期间隔重组定量评估左心室功能的差异性和临床应用价值。方法 22例健康体检者(无心脏疾病)行320排CT常规冠状动脉成像,分别以5%、10%R-R间期间隔重组全心周期图像,运用心功能软件分别计算两种间期间隔左心室舒张末期容积(EDV)、收缩末期容积(ESV)、每搏输出量(SV)、左心室射血分数(EF)。以二维超声心动图(2DE)的结果作为参考,采用配对t检验和Pearson相关分析比较两种重组方法的差异性和相关性。同时计算两种间期间隔重组心功能分析所用总时间。结果采用5%、10%R-R间期间隔重组心功能各项指标测量值比较差异无统计学意义(P0.05),5%R-R间期间隔EDV、ESV、SV、EF均略高于10%R-R间期间隔,两者之间具有高度相关性(r=0.853~0.976,P0.001)。320排CT 5%、10%R-R间期间隔重组分别测量左心功能与2DE之间差异无统计学意义(P*0.05)。5%、10%R-R间期间隔重组心功能分析平均花费时间分别为(26.2±2.3)min和(14.7±1.6)min。结论 320排CT行冠状动脉检查的同时可以评估左心室功能,5%和10%R-R间期间隔重组图像均能提供准确的数据,但以10%R-R间期间隔重组图像评估左心功能相对方便、快捷。
[Abstract]:Objective to evaluate the quantitative evaluation of left ventricular function by 320-slice volume CT 5% and 10 R interval recombination. Methods Twenty-two healthy subjects (without heart disease) underwent conventional coronary angiography with 320 slice CT. The total cardiac cycle images were reconstructed with 5 ~ 10 R-R intervals, respectively. Left ventricular end-diastolic volume (EDV), end-systolic volume (ESV), stroke output (SV) and left ventricular ejection fraction (EF) were calculated by cardiac function software. Two dimensional echocardiography (2DE) was used as a reference to compare the difference and correlation between the two recombination methods by paired t test and Pearson correlation analysis. At the same time, the total time used for the analysis of the two interphase interval recombination cardiac function was calculated. Results there was no significant difference in the measured values of cardiac function between 5 and 10R-R intervals (P0.05). The EDV ESVV SVEF of 5R-R interval was slightly higher than that of 10R-R interval. There was a high correlation between the two groups (r ~ (0.853) 0.976 / P ~ 0.001) .320 row CT / CT _ (5). There was no significant difference between 10R-R interval recombination and 2DE, respectively. There was no significant difference between the two groups (P0. 05) .5It was (26.2 卤2.3) min and (14.7 卤1.6) mins, respectively. Conclusion 320-slice CT can also evaluate the left ventricular function in 5% and 10 R-R interval reconstruction images, but it is convenient and rapid to evaluate left ventricular function with 10R-R interval reconstruction images.
【作者单位】：安徽医科大学空军临床学院;空军总医院磁共振科;
【分类号】：R816.2

【相似文献】