多普勒组织成像技术定量评价缺血再灌注局部心室壁运动  

Quantitative Evaluation of Regional Wall Motion During Myocardial Ischemia and Reperfusion by Doppler Tissue Imaging

作　　者：冀瑞平[1] 王新房[2] 刘望彭[1] 李治安[2] 刘莉[2] 

机构地区：[1]山西医科大学第一医院超声科,山西太原030001 [2]同济医科大学协和医院超声科

出　　处：《中国医学影像技术》2000年第10期848-850,共3页Chinese Journal of Medical Imaging Technology

摘　　要：目的　探讨多普勒组织成像 (DTI)技术定量判断急性缺血再灌注局部室壁运动异常的可行性。方法　应用AcusonSequoiaC2 5 6超声成像系统DTI速度模式观察 8条犬冠脉结扎前后的局部室壁运动。 结果　缺血导致局部心肌收缩速度和舒张早期速度明显下降 (5 5 3± 1 2 5cm/s,vs基础状态 7 6 0± 1 13cm/s ,P <0 0 5 ;5 76±1 0 6cm/s,vs基础状态 7 93± 1 83cm/s ,P <0 0 1) ,血流再灌注 1min时 ,局部室壁运动明显增强。结论　DTI技术可定量评价缺血再灌注后局部室壁运动异常 ,为临床心脏病的诊断提供新方法。Objective\ To evaluated the accuracy of pulsed Doppler tissue imaging(DTI) to quantify regional myocardial dysfunction induced by acute ischemia and reperfusion. Methods Eight open-chest dogs with left anterior descending coronary artery (LAD) occluded were observed.Regional wall motion was analyzed by DTI technique with Acuson Sequoia C256 color Doppler imaging system. Results Ischemia resulted in a significantly rapid reduction of systolic and early diastolic velocities.Regional ventricular wall contracted increased 1 minute after reperfusion. Conclusion DTI could quantify regional myocardial dysfunction during myocardial ischemia and reperfusion.It would be a new promising method in diagnosis of ischemic heart disease. [

关 键 词：多普勒组织成像 缺血再灌注 局部心室壁运动 

分 类 号：R445.1[医药卫生—影像医学与核医学]