应变率成像对冠心病CABG手术前后左室局部舒张功能的评价  

Strein Rate Imaging Evaluation on Left Ventricular Regional Diastolic Function Before and After CABG in Patients with CAD

作　　者：任敏[1] 田家玮[1] 

机构地区：[1]哈尔滨医科大学附属第二医院门诊超声科,哈尔滨市150086

出　　处：《中国超声医学杂志》2006年第4期270-272,共3页Chinese Journal of Ultrasound in Medicine

基　　金：黑龙江省科技厅攻关课题(No.GC04C30101)

摘　　要：目的采用应变率成像(SRI)定量评价冠状动脉搭桥(CABG)手术前、后左室局部心肌舒张功能变化。方法分别于CABG手术前1d、术后10d、1周、3周及6周测量20例冠心病和30例正常人冠状动脉左前降支(LAD)参与供血的9个室壁节段的SRIVR和SRE/SRA参数,并比较其变化。结果病例组术前相关节段负向应变率(SRIVR-)节段数显著增多;再灌注后SRIVR-峰值降低。病例组术前SRE减低,SRA增大或无明显变化,SRE/SRA<1;术后1周开始SRE/SRA不同程度增大。结论SRI可定量评价左室壁局部舒张功能,动态观察CABG手术前、后局部心肌功能的变化。Objective To evaluate left ventricular regional diastolic function quantitatively before and after CABG on patients with CAD via SRI. Methods Totally 20 patients with CAD were detected at ld before and 10 d, 1, 3 and 6 months after CABG with echocardiagraphy. Thirty normal subjects were in the control group. SRIVR and SRE/SRA at 9 segments supplied by LAD were measured and compared. Results In the CABG group, the numbers of segments with SRIVR were increased significantly before CABG. After reperfusion, the peak values of SRIVR were decreased. SRE were decreased and SRA increased slightly or had no obvious change （SRE/SRA〈 1） in patients before CABG. After operation, SRE/SRA was increased at defferent extent. Conclusions SRI can evaluate the regional diastolic function quantitatively and monitor the improvement of myocardial function after CABG.

关 键 词：应变率成像 左室舒张功能 冠状动脉搭桥术 

分 类 号：R654.2[医药卫生—外科学]