| 邓玉姣,夏稻子,李阳,杨冰冰,宣健媛.实时三平面定量组织速度成像评价心肌梗死患者心内、外膜下心肌运动[J].中国医学影像技术,2014,30(6):854~857 |
| 实时三平面定量组织速度成像评价心肌梗死患者心内、外膜下心肌运动 |
| Real-time triplane quantitative tissue velocity imaging in evaluation on endocardium and epicardium motion pattern in patients with myocardial infarction |
| 投稿时间：2014-01-04 修订日期：2014-04-14 |
| DOI： |
| 中文关键词: 超声心动描记术 定量组织速度成像 心肌梗死 心室功能,左 |
| 英文关键词:Echocardiography Quantitative tissue velocity imaging Myocardial infarction Ventricular function,left |
| 基金项目: |
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| 中文摘要: |
| 目的 应用实时三平面定量组织速度成像（Triplane-QTVI）技术定量评价左心室不同透壁程度梗死心肌节段心内、外膜下心肌运动情况。方法 对26例非ST段抬高型心肌梗死（NSTMI）患者（A组）、39例ST段抬高型心肌梗死（STMI）患者（B组）及25名健康志愿者（正常组）采集实时三平面组织速度图像，测量左心室梗死心肌节段收缩期心内膜下心肌峰值运动速度（Vs-endo）、心外膜下心肌峰值运动速度（Vs-epi）及其比值i（i=Vs-endo/Vs-epi）。结果 ①正常组Vs-endo、Vs-epi 均呈基底段、中间段至心尖段递减的趋势，同一心肌节段Vs-endo均>Vs-epi，i>1。②与正常组比较，A组梗死心肌节段Vs-endo均明显减低（P<0.05），Vs-epi 差异不具有统计学意义（P>0.05），i<1（P<0.05）。③与正常组比较，B组梗死心肌节段Vs-endo、Vs-epi均明显减低，i≈1（P<0.05）。④A、B两组梗死心肌节段之间比较Vs-epi、i差异有统计学意义（P<0.05）。结论 NSTMI型心肌梗死及STMI型心肌梗死患者梗死心肌节段呈现不同的收缩运动特征；同一心肌节段Vs-endo、Vs-epi及其比值能敏感反映心肌是否受损及受损程度。 |
| 英文摘要: |
| Objective To investigate the endocardial velocity, epicardial velocity and ratio of left ventricle in patients with different transmural extent of myocardial necrosis using real-time triplane quantitative tissue velocity imaging (Triplane-QTVI).Methods Twenty-six patients with non ST-segment elevation myocardial infarction (group A), 39 patients with ST-segment elevation myocardial infarction (group B) and 25 normal controls underwent Triplane-QTVI.The endocardial systolic peak velocity (Vs-endo), epicardial systolic peak velocity (Vs-epi) and ratio index (i, i=Vs-endo/Vs-epi) at infarction myocardium in group A and B were measured with Triplane-QTVI software. Results ①In control group, Vs-endo and Vs-epi went lower in basal segment, the middle segment and the apical segment, and Vs-endo>Vs-epi in the same segment and i > 1 were found. ②Compared with the control group, in group A, Vs-endo significantly reduced (P<0.05), Vs-epi was slightly lower (P>0.05), i<1 (P<0.05). ③Compared with the control group, Vs-endo and Vs-epi significantly reduced and i was close to 1 in group B (all P<0.05). ④Vs-epi and i were all statistically different between group A and group B (all P<0.05). Conclusion The ventricular wall motion pattern suffered different damage between nonST-segment elevation myocardial infarction and ST-segment elevation myocardial infarction patients.Vs-endo, Vs-epi and i are valuable indicators of myocardium damage in patients with different transmural extent of myocardial necrosis. |
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