斑点追踪显像技术评价急性心肌梗死患者左室局部及整体旋转与扭转运动

邓玉姣; 夏稻子; 杨冰冰; 李阳; 宣健媛

中国临床医学影像杂志 ›› 2014, Vol. 25 ›› Issue (4) : 237-239.

论文

斑点追踪显像技术评价急性心肌梗死患者左室局部及整体旋转与扭转运动

邓玉姣，夏稻子，杨冰冰，李阳，宣健媛

作者信息 +

Application of speckle tracking imaging in evaluating left ventricular rotation and torsion inpatients with acute myocardial infarction

DENG Yu-jiao, XIA Dao-zi, YANG Bing-bing, LI Yang, XUAN Jian-yuan

Author information +

文章历史 +

摘要

目的：应用二维斑点追踪显像（STI）技术定量评价非ST段抬高型及ST段抬高型急性心肌梗死患者经皮冠状动脉介入（PCI）术后左室局部及整体旋转与扭转运动，探讨不同透壁程度急性心肌梗死患者左室心肌收缩功能及PCI术后疗效。方法：对19例非ST段抬高型急性心肌梗死患者（A组）及31例ST段抬高型急性心肌梗死患者（B组）分别于PCI术后1周及3月时进行超声心动图检查，采集左室短轴心底水平、心尖水平高帧频二维图像，获得心底部和心尖部收缩期旋转峰值角度，计算扭转峰值角度。另选择27名健康志愿者为正常对照组（C组）。结果：从心尖向心底看，A组、B组及C组心尖部呈逆时针运动，为正值；心底部呈顺时针运动，为负值。与C组比较，术后1周时A、B两组心尖部、心底部旋转峰值角度及左室扭转峰值角度均降低，且B组降低尤为明显（P<0.05）。术后3月时A、B两组心底部及心尖部旋转峰值角度及左室扭转峰值角度均增加，A组心尖部旋转峰值角度改善明显，部分室壁与术后1周时比较差异具有统计学意义（P<0.05）。结论：不同透壁程度急性心肌梗死患者左室旋转和扭转运动均受到严重损害，A组较B组受损程度轻，PCI治疗较长时间后改善尤为显著。

Abstract

Objective: To evaluate the value of speckle tracking imaging(STI) in detecting left ventricular(LV) rotation and torsion after percutaneous coronary intervention(PCI) in acute myocardial infarction patients with non ST-segment elevation(NSTEAMI) and with ST-segment elevation(STEAMI) NSTEAMI and STEAMI using STI． Methods: Nineteen patients with NSTEAMI(group A) and 31 patients with STEAMI(group B)， who had acute myocardial infarction(AMI) for the first time and have been treated by PCI， were enrolled in this study． High frame rate two-dimensional images were collected from LV short views at the basal level and the apical level， and the parameters of rotation and torsion were calculated using STI in those patients at one week and three months after PCI． So were the 27 normal controls(group C)． Results: The apex was counterclockwise movement and rotation value was positive， and the base was clockwise movement and rotation value was negative in group A， B and C． Compared with group C， the values of apical rotation， basal rotation and LV twist were decreased in group A and STEAMI group at one week after PCI(P<0.05)， especially in group B． Those parameters were increased in group A and B at three months after PCI， and the apical rotation in part of segments was significantly improved in group A compared with one week after PCI(P<0.05)． Conclusion: The rotation of apex and base and LV twist were severely damaged in patients with different transmural extent of myocardial necrosis． There are significant improvements of those parameters in group A than that in group B after PCI for a long time．

导出引用

邓玉姣;夏稻子;杨冰冰;李阳;宣健媛. 斑点追踪显像技术评价急性心肌梗死患者左室局部及整体旋转与扭转运动[J]. 中国临床医学影像杂志. 2014, 25(4): 237-239

DENG Yu-jiao;XIA Dao-zi;YANG Bing-bing;LI Yang;XUAN Jian-yuan. Application of speckle tracking imaging in evaluating left ventricular rotation and torsion inpatients with acute myocardial infarction[J]. Journal of China Clinic Medical Imaging. 2014, 25(4): 237-239

中图分类号： Ｒ542.22 Ｒ540.45