二维斑点追踪成像技术评价左心室不同部位心肌梗死患者右心室心肌功能

发布时间：2018-01-15 16:01

本文关键词：二维斑点追踪成像技术评价左心室不同部位心肌梗死患者右心室心肌功能　出处：《中国医学影像技术》2016年07期 　论文类型：期刊论文

【摘要】：目的探讨二维斑点追踪成像技术(STI)评价左心室不同部位心肌梗死对右心室心肌功能的影响。方法收集诊断为急性心肌梗死(AMI)并接受经皮冠状动脉支架植入术的52例患者(AMI组),结合心电图、室壁运动评分指数(WMSI)及冠状动脉造影结果,分为下后壁心肌梗死亚组(A组,n=26)和非下后壁心肌梗死亚组(B组,n=26)。另选取26名健康志愿者作为对照组。对3组行超声心动图检查,采用STI技术进行评价,比较左、右心室心肌功能。结果与对照组比较,B组右心室纵向峰值应变(RV-LS)、右心室面积变化率(RVFAC)、左心室纵向峰值应变(LV-LS)、室间隔纵向峰值应变(Sep-LS)、左心室射血分数(LVEF)减小(P均0.05),WMSI增大(P0.05);与A组比较,B组RV-LS、RVFAC、LV-LS、Sep-LS减小(P均0.05),二尖瓣舒张早期血流速度与二尖瓣瓣环舒张早期运动速度的比值增大(P0.05)。RV-LS与LV-LS、Sep-LS和LVEF均呈正相关(r=0.48、0.55、0.39,P均0.05)。结论非下后壁心肌梗死患者右心室心肌收缩功能减低,且右心室心肌收缩功能主要受室间隔心肌收缩功能的影响。
[Abstract]:Objective to evaluate the effects of myocardial infarction in different parts of left ventricle on myocardial function of right ventricle by two dimensional speckle tracing imaging (STI). Methods the diagnosis of acute myocardial infarction (AMI) was collected. 52 patients underwent percutaneous coronary stenting (AMI group). Combined with ECG, WMSI) and coronary angiography results, the patients were divided into two groups: group A (subgroup A) and group B (non-inferior posterior myocardial infarction). Another 26 healthy volunteers were selected as control group. Echocardiography was performed in 3 groups and STI technique was used to evaluate the left and right ventricular myocardial function. The results were compared with those in the control group. In group B, right ventricular longitudinal peak strain (RV-LSU), right ventricular area change rate (RVFAC), left ventricular longitudinal peak strain (LV-LSU), and sep-LSe (ventricular septal longitudinal peak strain). The left ventricular ejection fraction (LVEF) decreased by 0.05% and WMSI increased (P 0.05). Compared with group A, RV-LSU RVFAC Sep-LS decreased significantly in group B (P 0.05). The ratio of early diastolic velocity of mitral valve to early diastolic velocity of mitral annulus increased P0.05N. RV-LS and LV-LS. There was a positive correlation between Sep-LS and LVEF. Conclusion the contractile function of right ventricle in patients with non-inferior posterior wall myocardial infarction is decreased. The contractile function of right ventricle was mainly affected by the systolic function of septal myocardium.
【作者单位】：中国医科大学附属第一医院心血管超声科;中国医科大学附属第一医院心血管内科;
【基金】：沈阳市科学计划项目(F13-221-9-60)
【分类号】：R542.22;R540.45
【正文快照】：

【相似文献】