摘要
目的应用超声二维斑点追踪显像技术(2D-STI)评价尿毒症患者的左室心肌旋转运动的特征。方法选择左心室射血分数正常(左室EF>50%)的尿毒症患者30例,记录左室基底部及心尖部短轴切面二维图像,运用2D-STI技术检测二个切面的左室心肌旋转峰值,并与30例正常对照者进行比较。结果尿毒症患者和正常人的左室扭转曲线基本形态相似,但尿毒症患者的左室扭转角度峰值较正常组明显降低,差异具有统计学意义(t=3.55,P<0.05)。结论 2D-STI技术可以作为早期评价尿毒症患者的左心室收缩功能的方法之一。
Objective To evaluate the left ventricular rotation in patients with uremia by using 2-dimensional ultrasound speckle-tracking imaging (2D-STI). Methods Thirty patients with uremia having normal left ventricular ejection fraction (LVEF〉50%) and 30 control subjects were enrolled in this clinical investigation. High frame rate two-dimensional images were recorded from the LV short-axis views both at the basal and apical planes. The peak rotation agrees of apex were obtained at both views by STI. Results The characteristics of the LV rotation curve in patients with uremia was similar to that of the controls, but the peak rotation degrees of the uremic patients was less than that of the normal subjects(t=3.55 ,P〈0.05). Conclusions 2D-STI could evaluate the early changes of LV function in uremic patients.
出处
《全科医学临床与教育》
2012年第1期6-8,2,共3页
Clinical Education of General Practice