实时三维斑点追踪技术评价早期冠心病左心室收缩功能

发布时间：2018-06-17 04:04

本文选题：实时三维斑点追踪技术 + 冠心病　；参考：《放射学实践》2015年05期

【摘要】：目的:应用超声实时三维斑点追踪技术(RT3D-STI)定量分析冠心病患者早期左心室节段收缩功能,探讨其在冠心病诊断中的应用价值。方法:搜集有胸闷、心绞痛病史,常规超声心动图未见室壁运动异常而经冠状动脉造影证实为冠心病的患者35例(冠心病组)及正常对照组21例,通过三维全容积图像获取左心室心肌收缩末期17节段"牛眼图",定量分析各节段收缩功能。结果:冠心病组缺血节段亚组与对照组、非缺血节段亚组比较,纵向应变(SLS)、圆击应变(SCS)、径向应变(SRS)、面积应变(SAS)差异均有统计学意义(P0.05),而对照组与非缺血节段亚组间各参数比较差异均无统计学意义(P0.05);应用ROC曲线分析表明SAS曲线下面积最大,且所有节段三维应变参数中以SAS-26.5%检测缺血心肌节段的敏感度(83.3%)、特异度(80.3%)较好。结论:RT3D-STI可以定量评估冠心病早期左室节段收缩功能,SAS能很好地识别缺血心肌节段,在冠心病早期诊断中有较高的应用价值。
[Abstract]:Objective: to quantitatively analyze the early left ventricular segmental systolic function of coronary heart disease (CHD) by ultrasonic real-time three-dimensional speckle tracking (RT3D-STI) and explore its value in the diagnosis of coronary heart disease. In 35 cases (coronary heart disease group) and 21 normal control group, the 17 segment "bull's eye map" of left ventricular myocardium was obtained by three-dimensional full volume image, and the systolic function of each segment was analyzed quantitatively. Results: the ischemic segment subgroup of the coronary heart disease group and the control group, the non ischemic segment subgroup, the longitudinal strain (SLS), the round strike strain (SCS), the radial strain (SRS), the area of the radial strain (SRS), and the area The difference of strain (SAS) was statistically significant (P0.05), but there was no significant difference between the control group and the non ischemic segment subgroup (P0.05), and the ROC curve analysis showed that the area under the SAS curve was the largest, and the sensitivity of SAS-26.5% to the ischemic myocardium was detected in all the three dimensional strain parameters (83.3%), and the specificity (80.3%) was compared. Good. Conclusion: RT3D-STI can quantitatively evaluate the left ventricular segmental systolic function in early coronary artery disease, and SAS can identify the ischemic myocardial segments well, and it is of high value in the early diagnosis of coronary heart disease.
【作者单位】：南方医科大学;广州军区广州总医院超声科;广州军区广州总医院心血管内科;
【基金】：广东省科学技术厅科技计划基金资助项目(2013A022100036)
【分类号】：R541.4;R445.1

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