定量组织速度成像对心肌缺血的评估  

Quantitative Tissue Velocity Imaging for Evaluating Myocardial Ischemia

作　　者：孙辉 [1] 金丽娟 [1] 崔林 [2] 秦燕 [2] 夏宏远 [1] 程荣超 [1] 

机构地区：[1]150086,哈尔滨市,哈尔滨医科大学附属第二医院心内二科 [2]150086,哈尔滨市,哈尔滨医科大学附属第二医院心脏功能室

出　　处：《中国超声医学杂志》2004年第4期283-285,共3页Chinese Journal of Ultrasound in Medicine

摘　　要：目的　采用定量组织速度成像技术 (QTVI)分析左室壁及二尖瓣环的运动速度指标 ,评价其在冠心病诊断中的应用。方法　冠状动脉造影 (CAG)患者 72例 ,按 CAG结果分为无狭窄组、单支狭窄组、多支狭窄组 ,比较前壁、下壁、侧壁、室间隔的基底部及中间部 8个位点的 VS、 VE、 VA、 E/ A及 3组患者的收缩期峰值速度 (Mv)与射血分数 (EF)值并检测其相关性。结果　单支狭窄组各部位速度值、 Mv、 EF值与正常组之间无显著差异 ;多支狭窄组各组值均较低且有显著性差异 (P<0 .0 5 ) ,且 Mv值与 EF值呈线性相关 (P<0 .0 1)。结论　 QTVI技术是一种较客观、定量、实时评价心肌缺血的指标。Objective:Quantitative tissue velocity imaging (QTVI) was used to detect wall motion of left ventricle and mitral valve annulus,and to investigate the value of TVI in the diagnosis of coronary artery disease.Methods:Two-dimensional echocardiography and QTVI were performed in 72 patients who underwent coronary angiography (CAG).QTVI indices included V S,V E,V A,E/A and systolic maximum velocity (Mv).Results:Control and single vessel involved group had no significent difference between them,but the group of the multiple vessel CAD had significently reduced Vs and Mv(P<0.05,compared with the control group).EF had a good linear correlation to Mv(r=0.84). Conclusions:QTVI may provide a new real-time indicator objectively and quantitatively to estimate the myocardial ischemia.

关 键 词：定量组织速度成像 心肌缺血 冠心病 冠状动脉造影 无创检查 

分 类 号：R445.1[医药卫生—影像医学与核医学]