摘要
目的探讨三维超声斑点追踪成像技术评价房间隔缺损患者左心室扭转的临床应用价值.方法先天性心脏病房间隔缺损(ASD)55例,年龄、性别匹配的对照组79例.采取心尖全容积图像,应用三维超声斑点追踪成像技术测量并比较左心室旋转角度(RA)、旋转率(RR)、扭转角度(TA)、扭转率(TR),三维斑点追踪分析软件计算左室射血分数(LVEF)及左室舒张期末容积(LVEDV).结果 ASD组中左心室曲线形态与对照组大致相似.相应的RA、RR、TA、TR曲线的波幅增高,波形紊乱,ASD组TR与对照组间差异有统计学意义(P<0.05).结论三维超声斑点追踪成像技术可发现ASD患者左心室旋转和扭转的变化,三维斑点追踪技术可无创、客观的评价左心室收缩功能,为评价左心室功能提供一种新方法.
Objective To discuss the clinical value of three-dimensional speckle tracking （3DT） in evaluating the left ventricular torsion in patients with atrial septal defec （ASD）. Methods 55 patients with ASD （ASD group） and 79 healthy volunteers （control group ） were enrolled in the study. By the apical full-volume image, we measured and compared the LV rotation angle （RA） , rotation rate （RR） , torsion angle （TA） and torsion rate （TR） using three-dimensional speckle tracking imaging. Results The left ventricular curve shape in ASD group was nearly similar with the control group. The corresponding curve amplitude of RA, RR, TA, TR increased, the waveform disordered, and there was a significant difference in TR between the CHD group and control group （P〈0.05）. Conclusion Left ventricular rotation and torsion can be found by three-dimensional speckle tracking （3DT） , and 3DT can evaluate the left point of myocardial mechanics. ventricular systolic function in patients with ASD from the
出处
《昆明医科大学学报》
CAS
2013年第2期79-82,共4页
Journal of Kunming Medical University
基金
云南省教育厅科研基金资助项目(2010C094)
关键词
三维超声心动描记术
房间隔缺损
左心室扭转
斑点追踪显像
Three-dimensional echocardiography
Atrial septal defect
Left ventricular torsion
Speckletracking
