128层CT一次扫描同时评价冠状动脉及左心室功能的可行性研究  

Feasibility of 128-slice CT for simultaneously evaluating coronary angiography and left ventricular function in one scan

作　　者：顾敏[1] 李康[1] 杨庆军[2] 马千红[1] 

机构地区：[1]重庆市中山医院放射科,重庆400013 [2]重庆市中山医院心血管外科,重庆400013

出　　处：《海南医学》2013年第15期2241-2244,共4页Hainan Medical Journal

基　　金：重庆市卫生局医学科研计划项目(编号:2011-1-103)

摘　　要：目的以心脏磁共振为对照标准，探讨128层螺旋CT（128SCT）一次扫描完成冠状动脉成像和左室功能分析的可行性。方法对45例临床拟诊冠心病患者同期行心脏128SCT和MRI检查，分别测量左室舒张末期容积（EDV）、收缩末期容积（ESV）、射血分数（EF）、每搏输出量（SV）、舒张末期心肌质量（MM）。结果675段冠脉血管中有85．8％（579／675）满足临床诊断要求。128SCT和MPdN定的左室功能具有高度相关性（r=0．74如．94，P〉0．051，两种方法差异无统计学意义。结论128SCT在左室功能评价方面准确、可靠，一次扫描可同时完成冠状动脉成像和左室功能分析。Objective To study the feasibility of 128-slice spiral CT （128SCT） for simultaneously evaluating coronary angiography and left ventricular function in one scan, taking MRI as the reference standard. Methods A to- tal of 45 patients suspected for coronary artery disease （CAD） underwent 128SCT and MRI heart study. The data sets of 128SCT and MRI were reconstructed at both end-diastole and end-systole to measure left ventrieular end-diastolic volume （EDV）, end-systolic volume （ESV）, ejection fraction （EF）, stroke volume （SV）, myocardial mass at end-diasto- le （MM）. The results from 128SCT were compared with MRI. Results A total of 675 segments of coronary vessels were studied and 85.8% （579/675） of the segments were qualified for image diagnostic requirement. There was no sig- nificant difference among the measurements for 128SCT and MRI of the left ventricular function parameters. A strong correlation between 128SCT and MRI （r=0.74-4）.94,/9〉0.05） was found for all parameters. Conclusion 128SCT an- giography of the heart is noninvasive assessment of the coronary tree, whereas the analysis of left ventrieular parame- ters provides additional information of cardiac function without further radiation exposure or scan time.

关 键 词：X线计算机体层摄影术 磁共振成像 冠状动脉 左心室功能 

分 类 号：R445[医药卫生—影像医学与核医学]