左室分层应变评价尿毒症患者左室心肌圆周应变的研究

发布时间：2018-03-30 00:09

  本文选题：斑点追踪成像　切入点：尿毒症　出处：《临床心血管病杂志》2017年10期

【摘要】：目的:应用斑点追踪成像技术(STI)中的心肌分层应变探讨其在评价尿毒症患者左室圆周收缩功能方面的价值。方法:选取78例确诊为尿毒症并行维持性血液透析的患者,根据左室构型情况分为左室构型正常组(LVN组,42例)和左室肥厚组(LVH组,36例),选择38例健康人作为对照组。先行常规数据测量,接着应用STI获取所有患者胸骨旁左室二尖瓣口、乳头肌及心尖水平心内膜下心肌、中层心肌和心外膜下心肌收缩期圆周应变(CS)。结果:与对照组和LVN组比较,LVH组IVSTd、LVPWTd、LAESd、E/A显著升高(均P0.05)。LVN组、LVH组和对照组的CS均存在如下规律:即心内膜下心肌CS最大,心外膜下心肌CS最小;与对照组比较,LVN组3层心肌CS降低均无统计学意义;与对照组及LVN组比较,LVH组二尖瓣口及乳头肌水平心内膜下和中层心肌CS均显著降低(均P0.05)。结论:心肌分层应变技术可以定量逐层评价尿毒症患者左室CS,为准确判断其心肌受累情况提供一种新的检查方法。
[Abstract]:Objective: to investigate the value of myocardial delamination strain in dot-tracing imaging (STI) in evaluating left ventricular peripheral systolic function in uremic patients. Methods: 78 patients with uremia and maintenance hemodialysis were selected. According to the left ventricular conformation, the patients were divided into two groups: left ventricular normal group (n = 42) and left ventricular hypertrophy group (n = 36). 38 healthy persons were selected as control group. Routine data were measured first, and then left ventricular mitral orifice was obtained by STI. Papillary muscle and apical level subendocardial myocardium, Results: compared with the control group and the LVN group, the systolic circumferential strain of the middle and epicardial myocardium was significantly increased. Results: compared with the control group and the LVN group, the CS of the IVSTD group was significantly higher than that of the control group. (the CS of both the P0.05).LVN group and the control group were as follows: the subendocardial myocardial CS was the largest. Compared with the control group, there was no significant difference in CS between LVN group and LVN group. Compared with the control group and the LVN group, the CS of the subendocardial and middle myocardium in the mitral orifice and papillary muscle were significantly decreased (all P 0.05). Conclusion: myocardial stratification strain technique can quantitatively evaluate left ventricular CSS in uremic patients, which is an accurate judgment. A new method for detecting myocardial involvement is provided.
【作者单位】： 大连医科大学附属第二医院超声科;
【分类号】：R445.1;R692.5
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本文编号：1683480