组织多普勒显像与二维超声心动图的相关性分析  被引量:2

Relationship Between Doppler Tissue Imaging and 2-Dimensional Echocardiogram

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作  者:魏丽萍[1] 杨锐英[1] 刘霞[2] 王琴[2] 郄占军[2] 

机构地区:[1]宁夏医学院附属医院干部外宾病房,银川750004 [2]宁夏医学院附属医院超声心动图室,银川750004

出  处:《宁夏医学院学报》2005年第4期269-271,共3页Journal of Ningxia Medical College

基  金:宁夏回族自治区自然科学基金资助项目(C1021)

摘  要:目的通过组织多普勒显像技术(DTI)局部心功能指标与二维超声心动图(2DE)整体心功能指标的相关分析,探讨DTI检测局部心功能的价值。方法选择经冠脉造影证实的36例冠心病患者及20例健康查体者为研究对象。DTI测定指标:收缩期峰值速度VS、舒张早期峰值速度Ve、舒张晚期峰值速度Va、Ve/Va,以及2DE指标:左室舒末内径(LVDD)、小轴缩短率(△D%)、左室射血分值(LVEF)、二尖瓣血流频谱E峰、A峰比值(E/A)。结果(1)DTI收缩功能指标与2DE相关指标Vs1、Vs2与LVEF、△D%存在显著正相关;(2)DTI舒张功能指标与2DE相关指标e1、e2、(e/a)1(、e/a)2与E/A存在正相关;(3)Vs1、Vs2与年龄、心率无相关关系,E/A、(e/a)1、(e/a)2与年龄、心率存在负相关。结论(1)DTI心功能指标与2DE指标相关良好,DTI能准确地将心脏局部室壁运动信息显示出来,Vs可反映局部收缩功能的变化,Ve/Va可反映局部舒张功能的变化;(2)DTI舒张功能指标中(e/a)1、(e/a)2随年龄、心率增加而减低。Objective To analyze the relationship between local heart function indexes of Doppler Tissue Imaging (DTI) and global heart function indexes of 2 - Dimensinal Echocardiogram (2DE). Methods Thirty six patients diagnosed as coronary heart disease proved by coronary angiography and 20 normal person as control were enrolled. The DTI indexes included systolic velocity (Vs), early diastolic peak velocity (Ve) , late diastolic peak velocity (Va), Ve/Va and 2DE indexes included left ventricular diastolic diameter (LVDD), short- axis decrease rate (AD%), left ventricular ejection fraction (LVEF) and mitral valve blood flow velocity E/A were tested. Results ( 1 ) The mean Vs (VS1) of 6 basal segments and the mean Vs (Vs2) of 6 mid segments of DTI systolic indexes were correlated with LVEF, △ D % of 2DE. (2) The e1, e2, (e/a) 1 and (e/a) 2 of DTI diastolic indexes were correlated with E/A of 2DE. (3) VS1 ,Vs2 were no relation with age and HR. There were negative correlation between E/A, (e/a)1, (e/a)2 and age and HR. Conclusion (1)DTI indexes are correlated with 2DE indexes . DTI can actually display information of location cardiac motion, Vs can reflect location systolic function change, and Ve/Va can reflect location diastolic function change. (2)DTI diastolic indexes, (e/a)1 and (e/a)2,decrease with the increasing of age and heart rate.

关 键 词:多普勒组织显像技术 二维超声心动图 局部心功能 心率 

分 类 号:R540.45[医药卫生—心血管疾病]

 

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