脉冲组织多普勒对冠心病节段性室壁运动异常的研究  

Study of pulsed Doppler tissue imaging in segment wall motion abnormality of coronary heart disease

作　　者：余亚鹏[1] 赵新民[1] 

机构地区：[1]河南省濮阳市油田总医院超声科,濮阳457001

出　　处：《中国实用医刊》2008年第4期15-17,共3页Chinese Journal of Practical Medicine

摘　　要：目的探讨脉冲组织多普勒成像（DTI—PW）检测冠心病节段性室壁运动异常的指标和临床应用价值。方法应用DTI技术对76例冠心病患者和61例正常对照者左室壁节段长轴方向运动速度和收缩时间参数进行对照分析。结果DTI冠心病组运动异常节段长轴方向的峰值速度明显减低，PEP、TS显著延长。结论DTI可直观显示局部室壁运动异常的部位，DTI测量参数可敏感反映冠心病患者左室局部收缩功能异常及心肌缺血的严重程度，对冠心病的无创诊断具有重要应用价值。Objective To assess the parameters and clinical value by pulsed Doppler tissue imaging in segment wall motion abnormality of coronary heart disease （CHD）. Methods The moving velocities and systolic time parameters of ventricular wall in long axis direction were measured and analyzed by DTI technology in 76 CHD patients and 61 normal subjects. Results The peak velocities of segment wall motion abnormality in long axis direction of CHD were significant decreasing,especially for systolic wave （S） and early diastolic wave （E） （P 〈 0. 01 ）. The pre -ejection period （PEP） and time to the peak of systolic wave （Ts） were significant prolongation than normal subjects （P 〈 0.01 ）. Conclusion DTI can directly show direction, phase, amplitude and changes of velocity of myocardial motion. Velocity spectrum and systolic time parameters of segment wall motion abnormality measured by PW- DTI can be quantitatively analyzed and can sensitively detect ischemic segments of abnormal motion in CHD patients. DTI has great value in noninvasive diagnosis of CHD.

关 键 词：多普勒组织成像 冠心病 节段性室壁运动异常 

分 类 号：R541.4[医药卫生—心血管疾病] R445.1[医药卫生—内科学]