| 摘要: |
| 【】 目的 探讨心脏四维定量技术评价冠状动脉支架植入前后左室收缩功能的应用。方法 利用GE-vivid-E9高档彩超,四维容积成像技术,建立120例正常人心脏左室壁17节段心肌纵向应变、径向应变、圆周向应变和面积应变正常对照值。研究29例心肌梗死患者的心梗范围及其节段应变变化,通过冠脉造影进判断梗死部位和范围与四维超声检查的一致性,并与正常人群心脏左室壁17节段心肌纵向应变、径向应变、圆周向应变和面积应变进行对比分析。经皮冠状动脉介入治疗术(PCI术)后3月复查心肌梗死范围和节段应变与术前再次进行对比分析。结果 29例心梗患者梗死部位和范围与冠脉造影结果一致,梗死节段心肌纵向应变、径向应变、圆周向应变和面积应变明显低于正常对照值具有统计学意义。PCI术后3月复查心肌梗死范围变化,急性心肌梗死患者梗死范围明显变小,心肌纵向应变、径向应变、圆周向应变和面积应变恢复到正常范围,左室射血分数(LVEF)>50%；亚急性心肌梗死范围有缩小,对应节段各类应变改善,LVEF >5%；陈旧性心肌梗死范围无明显缩小,对应节段各类应变无明显改善,LVEF提高<5%。结论 心脏四维定量技术能更好地识别左室各节段心肌运动在空间和时间分布上的细微差别,可实时、全方位定量分析左心室室壁运动状态。 |
| 关键词: 心脏四维定量技术 心肌梗死 应变 左室收缩功能 |
| DOI： |
| 投稿时间：2018-05-05修订日期：2018-07-12 |
| 基金项目: |
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| Evaluation of application of left ventricular systolic function by The cardiac four-dimensional quantitative technique before and after coronary stent implantation |
| zhou xuanyi,bai jianning |
| (People''''s hospital of xishuangbanna) |
| Abstract: |
| 【】Objective To evaluate the application of cardiac four-dimensional quantitative technique in the evaluation of left ventricular systolic function after coronary stent implantation. Methods Use GE-vivid-E9 high-end color ultrasound, four - dimensional volume imaging technology. Set up 120 cases of normal heart 17 segmental left ventricular wall myocardial longitudinal strain and radial strain, circumferential strain and area of normal reference value of strain. Study of 29 cases of patients with myocardial infarction and section strain changes of myocardial infarction by coronary angiography to judge the position and size of infarction and the consistency of the four-dimensional ultrasound, and compared with normal heart 17 segmental left ventricular wall myocardial longitudinal strain and radial strain, circumferential strain and the area strain were analyzed. After percutaneous coronary intervention (PCI), the range of myocardial infarction and segmental strain and preoperative analysis were reviewed in March. Results In 29 cases of myocardial infarction, the site and scope of infarction were consistent with the results of coronary angiography, and the longitudinal strain, radial strain, circumferential strain and area strain of the infarcted segment were significantly lower than the normal control values. March of PCI postoperative myocardial infarction review of the scope change, the range decreased significantly in patients with acute myocardial infarction infarction, myocardial longitudinal strain and radial strain, circumferential strain and the area strain recover to the normal range, left ventricular ejection fraction(LVEF) > 50%; The range of subacute myocardial infarction was narrowed, the corresponding segmental strain improved, and the LVEF increased >5%. There was no significant reduction in the extent of the myocardial infarction, the corresponding segmental strain showed no significant improvement, and the LVEF increased <5%. Conclusion The four-dimensional quantitative technique of the heart can better identify the small differences in the spatial and temporal distribution of myocardial movements in each segment of the left ventricle, and the motion state of the left ventricular wall can be quantitatively analyzed in real time. |
| Key words: Cardiac four-dimensional quantitative technique Myocardial infarction Strain Left ventricular systolic function |
