超声斑点追踪显像技术对高龄高血压患者早期心肌功能损伤的诊断价值  

Diagnostic value of ultrasound STI technique on the early myocardial dysfunction of elderly patient with hypertension

作　　者：笪应芬 李英华 吴建梅 刘怡 DA Ying-fen;LI Ying-hua;WU Jian-mei(Department of Ultrasound Diagnosis,Huangpu Branch of Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University,Shanghai 200011,China;不详)

机构地区：[1]上海交通大学附属第九人民医院黄浦分院超声诊断科,上海200011 [2]上海中医药大学附属曙光医院超声科,上海200021

出　　处：《中国医学装备》2020年第11期69-72,共4页China Medical Equipment

基　　金：上海市卫生和计划生育委员会科研课题计划(201440335)“动态全景M型(vRM)对左室径向非同步化的应用研究”。

摘　　要：目的:研究超声斑点追踪显像(STI)技术对高龄高血压患者早期心肌功能损伤的诊断价值。方法:收集医院收治的60例高龄高血压患者,将其纳入观察组,同期收集60名健康体检者为对照组。两组均行常规超声心动图检查,利用STI检测不同部位收缩期平均峰值速度、收缩期平均峰值应变、收缩期平均峰值应变率(s^-1),分析其两组数据差异。结果:两组左室射血分数(%)、左室短轴缩短率和二尖瓣舒张早期与晚期血流峰值速度比值(E/A)值差异无统计学意义。观察组基底段、中间段及心尖段收缩期平均峰值速度均低于对照组,其差异有统计学意义(t=2.290,t=3.181,t=2.921;P<0.05);基底段、中间段及心尖段收缩期平均峰值应变均高于对照组,其差异有统计学意义(t=3.199,t=3.273,t=2.627;P<0.05)。观察组基底段收缩期平均峰值应变率(s^-1)为(-1.75±0.47),高于对照组的(-1.93±0.49),差异有统计学意义(t=2.054,P<0.05)。两组中间段、心尖段收缩期平均峰值应变率(s^-1)相比,差异无统计学意义。结论:在高血压患者左室射血分数明显下降之前,STI即可识别早期心肌功能损伤,对防治高血压相关的心肌功能损伤具有一定临床意义。Objective:To investigate the diagnostic value of ultrasound speckle tracking imaging(STI)technique on early myocardial dysfunction of elderly patients with hypertension.Methods:60 elderly patients with hypertension admitted to hospital were prospectively collected as an observation group,and 60 healthy elderly peoples who were confirmed by physical examination were divided into control group.Both two groups underwent conventional echocardiography.Meanwhile,STI was used to detect the velocity of average peak value in systolic period,the strain of average peak value in systolic period and the strain rate of average peak value in systolic period of different part,and the differences of data between two groups were analyzed.Results:There were no significant differences in left ventricular ejection fraction(%),the shortening rate of shortening fraction of left ventricular and the peak value of mitral blood flow(E/A value)between the two groups.When compared with control group,the velocity of average peak value of systolic period in the basal,middle and apical segments of observation group significantly lower(t=2.290,t=3.181,t=2.921,P<0.05).And the strains of average peak values of systolic period in the basal,middle and apical segments of observation group were significantly higher than those of control group(t=3.199,t=3.273,t=2.627,P<0.05).The strain rate(s-1)of average peak value of systolic period of basal segment in observation group was^-1.75±0.47 which was significantly higher than-1.93±0.49 of control group(t=2.054,P<0.05).There were no significant difference in strain rate(s^-1)of average peak value of systolic period of middle and apical segments between the two groups.Conclusion:STI can identify early injury of myocardial function before the ejection fraction of left ventricular of patient with hypertension decreases significantly,which has a certain to clinical significance in preventing and treating hypertension-related injury of myocardial function.

关 键 词：超声斑点追踪显像(STI) 高血压 心肌损伤 高龄 诊断 

分 类 号：R445.1[医药卫生—影像医学与核医学]