摘要
目的:讨论二维超声斑点追踪技术在评价阻塞性睡眠呼吸暂停综合征(OSAS)患者左心室功能的应用价值。方法:选取110例OSAS患者资料进行总结性分析,运用超声斑点追踪显像技术(STI)分析左心室心肌不同方向上的整体应变能力、左心室扭转及二尖瓣环中点处收缩期最大位移(MAD)与左心室射血分数(LVEF)的关系。结果:MAD与LVEF呈显著相关性(r=0.81,P<0.01)。LVEF与GLS、GRS、GCS及LVtw均呈显著相关性(r=-0.74,r=0.57,r=-0.55,r=0.65;P<0.01)。MAD与GLS、GRS和LVtw均具有显著相关(r=-0.69,r=0.49,r=0.45;P<0.01);MAD与GCS具有负相关(r=-0.39,P<0.05)。结论:STI通过对心肌应变能力、心室扭转及二尖瓣环中点处收缩期最大位移进行分析,能够准确评价左心室的纵向、径向以及扭转运动的同步性,与左心室射血分数高度相关,有较好的一致性,具有非常广阔的应用前景。
Objective： To discuss the application value with two-dimensional ultrasound speckle tracking technique in the evaluation of left ventricular function in patients with OSAS. Methods： Selected 110 cases of hospital patients with OSAS in recent years, used STI technical analysis of left ventricular myocardium using different directions overall resilience, Left ventricular torsion and systolic mitral annular midpoint of the maximum displacement （MAD） and left ventricular ejection fraction （LVEF） relationship, performed using SPSS 17.0 statistical correlation analysis. Results： MAD had a significant correlation with LVEF（r=0.81, P〈0.01）; GLS（r=-0.74, P〈0.01）,GRS GRS（r=0.57, P〈0.01）,GCS （r=-0.55, P〈0.01） and LVtw（r=0.65, P〈0.01）were significantly associated with LVEF; MAD and GLs（r=-0.69, P〈0.01）,GRs （r=0.49, P〈0.01）, LVtw （r=0.45, P〈0.01）were significantly associated; MAD and GCs （r=-0.39, P〈0.05）with a negative correlation. Conclusion： STI resilience through the myocardium, ventricular torsion and systolic mitral annular maximum displacement at the midpoint of the analysis, can accurately evaluate left ventricular longitudinal, radial and torsional motion synchronization, highly correlated with left ventricular ejection fraction, good consistency, with a very broad application prospects.
出处
《中国医学装备》
2014年第10期17-19,共3页
China Medical Equipment
基金
吉林省卫生厅科技发展攻关计划(201310671)"二维斑点追踪技术左心室功能变化中的应用研究"
