中国医疗设备2017，Vol.32Issue(12)：76-79,4.DOI:10.3969/j.issn.1674-1633.2017.12.018
TDI等容收缩期参数评价冠心病节段性心内膜回声增强与心肌缺血关系
Isovolumic Contraction Parameters of Tissue Doppler Imaging in Evaluation of Segmental High-Echo Endocardium of Coronary Artery Disease with Myocardial Ischemia
马秀丽 1刘书丽1
作者信息
- 1. 沈阳市第四人民医院 电诊科,辽宁 沈阳 110031
- 折叠
摘要
Abstract
Objective To assess the segment myocardial function under the endocardium of high echo-intensity by using pulse wave tissue Doppler imaging (PW-TDI) derived indices, and to evaluate the relationship between these parameters and myocardial ischemia. Methods A total of 27 patients with high echo-intensity endocardium on inferior, 18 patients with high echo-intensity endocardium on posterior septum, and 20 normal controls detected by using TW-TDI technique were enrolled in this study. Conventional two-dimensional (2D) parameters of left heart and TDI derived systolic velocities of mitral annulus, including peak systolic velocity during ejection period (Sa), early diastolic peak velocity (Ea), late diastolic peak velocity (Aa), peak myocardial velocity during isovolumic contraction (IVV), and isovolumic myocardial acceleration (IVA) were measured and statistically analyzed. Results Conventional 2D parameters of left heart had no statistical difference among 3 groups. The pulse tissue doppler parameters (Aa was increased, Ea and IVA were decreased) which could reflect the function of left ventricular were significanthy changed compared to that of control group. There was no significant difference of Sa and IVV among 3 groups. Conclusion Isovolumic contraction parameters of PW-TDI can be used to evaluate the myocardiol ischemia in patients with high echo-intensity endocardium early and noninvasively and can indicat myocardial ischemia.关键词
心内膜/左心室/组织多普勒/超声心动图Key words
endocardium/left ventricular/tissue Doppler imaging/echocardiography分类
医药卫生引用本文复制引用
马秀丽,刘书丽..TDI等容收缩期参数评价冠心病节段性心内膜回声增强与心肌缺血关系[J].中国医疗设备,2017,32(12):76-79,4.
