斑点追踪显像评价扩张型心肌病患者左室扭转  

Evaluation of Left Ventricular Torsion in Patients with Dilated Cardiomyopathy by Speckle Tracking Imaging

作　　者：马兰[1] 吴卫华[1] 陆静[1] 魏松霞[1] 黄艳[1] 谢晓奕[1] 

机构地区：[1]上海市胸科医院超声科,上海200030

出　　处：《中国临床医学》2008年第3期424-426,共3页Chinese Journal of Clinical Medicine

摘　　要：目的:应用斑点追踪显像评价扩张型心肌病患者左室扭转以及其与左室收缩功能之间的关系。方法:获取30例扩张型心肌病患者与30例正常人的标准短轴左心室基底部、心尖部的图像,应用斑点追踪显像测量各个水平峰值旋转角度及旋转率,比较扩张型心肌病患者与正常人之间的差异,以及分析左室扭转与左室舒张末期、左室收缩末期容积及射血分数之间的关系。结果:扩张型心肌病组中峰值旋转角度、旋转率与左室扭转明显减低,左室扭转与左室舒张末期容积、左室收缩末期容积呈负相关,与左室射血分数呈正相关。结论:扩张型心肌病患者的左室扭转运动严重受损,从而引起收缩功能减退。Objective：The purpose of this study was to analyze left ventricular torsion the correlation between torsion and left ventricular systolic function in patients with dilated cardiomyopathy by speckle tracking imaging.Methods：Two-dimensional echocardiographic images were acquired from the left ventricular short-axis views at the basal level and apical level of the left ventricle in 30 patients with dilated cardiomyopathy and 30 healthy subjects.Left ventricular global peak rotation and rotation rate were measured at each level.Statistical analysis was used to find the difference between the dilated cardiomyopathy patients and the normal controls.Results：Peak rotation,rotation rate and global torsion were decreased significantly in DCM.Left ventricular global torsion inversely correlated with left ventricular end systolic and diastolic volume,and positively with left ventricular ejection fraction.Conclusion：Left ventricular systolic torsion in patients with dilated cardiomyopathy was significantly impaired.

关 键 词：超声心动图 斑点追踪显像 扩张型心肌病 左室扭转 

分 类 号：R445.1[医药卫生—影像医学与核医学]