64-MDCT左心功能检查左心室收缩和舒张末期期相分析  

64-MDCT examination of left ventricular function:phase analysis of left ventricular end-diastole and end-systole

作　　者：薛鹏[1] 郑红伟[1] 陈勇[1] 张斯佳[1] 漆剑频[2] 夏黎明[2] 胡道予[2] 

机构地区：[1]郑州人民医院放射科,郑州453003 [2]华中科技大学同济医学院附属同济医院放射科,武汉430030

出　　处：《放射学实践》2012年第6期632-634,共3页Radiologic Practice

摘　　要：目的:探讨64-MDCT左心功能检测时左心室舒张末期和收缩末期所对应的期相。方法:随机搜集2010年4月-2011年5月在本科室行64-MDCT冠状动脉造影检查成功的冠心病患者50例,将原始图像重建间隔为5%R-R间期,0%～95%共20个期相的全心动周期薄层图像,输入后处理工作站,采用自动心功能分析软件,计算出各个期相的左心室容积。结果:50例受检者中48例左心室舒张末期为0%期相,2例为95%期相,0%与95%期相左心室容积差异无统计学意义;左心室收缩末期14例为35%期相,29例为40%期相,7例为45%期相,35%与40%期相、35%与45%期相左心室容积差异无统计学意义。结论:64-MDCT心功能检测时,左心室舒张末期多为0%期相,收缩末期为35%～45%期相。Objective：To investigate the phases corresponding to left ventricular end-diastole or end-systole for left ventricular function study with 64-MDCT. Methods：From April 2010 to May 2011,50 cases who had undergone coronary CT angiography at 64-MDCT were randomly enrolled. Twenty phases of thin images between 0% to 95 % RR interval （5 RR interval apart） were reconstructed during the cardiac cycle and the raw images were transferred to the post-processing workstaion. Then,the left ventricular volume of each phase was derived by using automatic cardiac function analysis soft- ware. Results：The end-diastole phase of left ventricle was set on 0 % RR interval in 48 cases and 95% RR interval in 2 ca- ses,in which no significant difference was found. The end-systole phase of left ventricle was set on 35% RR interval in 14 cases,40% RR interval in 29 cases and 45% RR interval in 8 cases. There were no significant differences in comparing be- tween 35 % phase and 40 ~ phase, and between 35 % to 45 % phase, respectively. Conclusion： The end-diastole phase of left ventricle obtaind by 64-MDCT was set on 0% RR interval and 35%~45% RR interval was set as the end-systole phase of the left ventricle.

关 键 词：心室功能 左 体层摄影术 X线计算机 血管成像 

分 类 号：R816.2[医药卫生—放射医学]