熊莉,邓又斌,申屠伟慧,余芬,张芸,黄润青,张清阳.超声斑点追踪技术对心肌梗死患者室壁运动的二维应变研究[J].中国医学影像技术,2007,23(7):990~993
超声斑点追踪技术对心肌梗死患者室壁运动的二维应变研究
Two-dimensional strain in patients with myocardial infarction measured by speckle tracking echocardiography
投稿时间:2007-04-26  修订日期:2007-06-20
DOI:
中文关键词:  超声心动图描记术  二维应变  节段性室壁运动异常  心室功能
英文关键词:Echocardiography  Two-dimensional strain  Regional wall motion abnormality  Ventricular function
基金项目:
作者单位E-mail
熊莉 华中科技大学同济医学院附属同济医院超声影像科,湖北 武汉 430030  
邓又斌 华中科技大学同济医学院附属同济医院超声影像科,湖北 武汉 430030 brycenew@163.com 
申屠伟慧 华中科技大学同济医学院附属同济医院超声影像科,湖北 武汉 430030  
余芬 华中科技大学同济医学院附属同济医院超声影像科,湖北 武汉 430030  
张芸 华中科技大学同济医学院附属同济医院超声影像科,湖北 武汉 430030  
黄润青 华中科技大学同济医学院附属同济医院超声影像科,湖北 武汉 430030  
张清阳 华中科技大学同济医学院附属同济医院超声影像科,湖北 武汉 430030  
摘要点击次数: 2766
全文下载次数: 1674
中文摘要:
      目的 应用超声斑点追踪技术测量心肌梗死患者梗死节段室壁的二维应变,探讨其诊断局部室壁运动异常的临床应用价值。方法 30例正常人及30例心肌梗死患者,分别记录左室短轴(二尖瓣,乳头肌,心尖部)图像和心尖位四腔切面,二腔切面,左室长轴高帧频图像,应用二维应变软件测量各个节段的二维应变值。结果 心肌梗死患者梗死节段共177个,其中158个节段通过超声斑点追踪技术,获得二维应变值。基底段,中间段及心尖段纵向应变值与正常对照组均明显减低,有显著性差异,P<0.01;左室短轴(二尖瓣,乳头肌及心尖部水平)的径向应变及圆周应变与正常对照组均明显减低,有显著性差异,P<0.05;旋转角度无统计学差异。结论 超声斑点追踪技术可准确评价节段性室壁运动异常,为临床评价心肌梗死患者左心收缩功能提供无创性新方法.
英文摘要:
      Objective To evaluate the clinical value of speckle tracking echocardiography for the measurement of two-dimensional strain in patients with myocardial infarction. Methods Study population consisted of 30 patients with myocardial infarction and 30 healthy subjects. High frame rate two-dimensional images were recorded from the left ventricular short-axis views at the levels of mitral annulus, papillary muscle and apex, and the apical four-chamber view, two-chamber view and long-axis view of the left ventricle respectively. The longitudinal strain was measured in the apical views. Radial strain, circumferential strain and rotation were measured in the left ventricular short-axis views using 2D strain software. Results Two-dimensional strain was obtained in 158 of 177 segments with regional wall motion abnormalities in patients with myocardial infarction. Infarct segments in myocardial infarction patients showed significant reduction of longitudinal strain compared with normal myocardium (P<0.01). Infarct segments in myocardial infarction patients showed significant reduction of radial strain and circumferential strain compared with normal myocardium (P<0.05). There was no significant difference in myocardial rotation between normal myocardium and infarct segments. Conclusion Regional wall motion of left ventricule in patients with myocardial infarction can be evaluated accurately with Speckle tracking echocardiography.
查看全文  查看/发表评论  下载PDF阅读器