QTVI位移图在冠心病中的应用价值  

Value of QTVI Displacement Imaging in Coronary Artery Disease

作　　者：孙立涛[1] 田家玮[1] 冷晓萍[1] 马娜[1] 

机构地区：[1]哈尔滨医科大学附属第二医院超声科,哈尔滨市150086

出　　处：《中国超声医学杂志》2005年第8期592-594,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：目的利用定量组织速度成像(QTVI)位移图将冠心病患者和正常人作对照,以证实QTVI位移图在冠心病诊断中的重要价值。方法选择冠心病陈旧性心肌梗死患者及经冠状动脉造影证实正常人各30例,分别作为冠心病组及对照组。在TVI状态下,采集左室各节段长轴方向的图像,并在QTVI状态下对18个节段进行位移峰值的测量。结果在正常状态下心肌节段位移由心底至心尖运动幅度逐渐减低,同一水平不同室壁心肌运动幅度也不同。而冠心病组梗死相关节段的位移峰值明显减低,与正常对照组比较有显著性差异(P<0.01),基底段各壁变化较小。结论QTVI位移图能准确判断心肌纵向收缩幅度,客观反映左室壁运动情况,为冠心病心肌缺血和梗死的定位、定量提供可靠依据。Objective To verify the important value of quantitative tissue displacement velocity imaging （QTVI） in the diagnosis of coronary artery disease （CAD） by comparing the CAD patients with normal subjects. Methods Thirty CAD patients with old myocardial infarction and 30 normal persons proved by the coronary artery angiography were chosen as the CAD group and the control group. The three longitudinal planes were obtained by TVI technology and the peak displacement of all the 18 segments were measured using QTVI. Results In the control group, the amplitudes of the motion reduced gradually from the basal segment to the apex and the amplitudes were distinct in the different walls at the sine level. The peak displacement values were decreased in the related segments of CAD patients and were significant different from that of the control group （P〈0.01） . But the changes were little in the basal segments. Conclusions The QTVI displacement images can judge the longitudinal systolic amplitudes accurately and record the motion of LV walls objectively. Moreover it can provide a credible proof for the location and the quantity determination of the ischemia and infarction myocardium range in CAD patients.

关 键 词：QTVI位移图 冠心病 心肌缺血 定量组织速度成像 位移图 

分 类 号：R541.4[医药卫生—心血管疾病]