超声心动图评价有效舒张期与左室舒张功能的关系  

Evaluating the relationship of left ventricular diastolic function with effective diastolic by using echocardiogram

作　　者：谷青[1] 卢川[2] 

机构地区：[1]88医院超声科,山东泰安271000 [2]泰山医学院放射学院,山东泰安270016

出　　处：《实用医药杂志》2012年第4期306-308,共3页Practical Journal of Medicine & Pharmacy

摘　　要：目的探讨有效舒张期(二尖瓣血流频谱持续时间及形态)与左室舒张功能的关系。方法应用彩色多普勒超声显像仪,对90例受检者进行超声检查,分为三组,测量舒张早期E峰持续时间(ET),舒张晚期A峰持续时间(AT),舒张早期起始至晚期结束时间(E-AT),全心动周期时间(CCT),观察E峰、A峰形态,计算E-AT/CCT比值。结果三组受检者二尖瓣血流频谱均呈正向双峰波形。Ⅰ组(正常对照组):30例,频谱为E峰高,A峰低,E>A,E峰与A峰之间有时间间隔,E-AT/CCT比值>50%。Ⅱ组(舒张功能减低A):30例,频谱为E峰减低,A峰升高,E<A,E峰与A峰之间有时间间隔,E-AT/CCT比值>50%。Ⅲ组(舒张功能减低B):30例,频谱为E峰减低,A峰升高,E<A,E峰与A峰之间无时间间隔,相互融合,融合的形态及程度有不同,E-AT/CCT比值均<50%。结论超声心动图可以快速简便地得出有效舒张期时间、二尖瓣血流频谱时间及形态,可以进一步反映左室舒张功能减低的状态。当E峰<A峰时,E峰、A峰融合明显,有效舒张期显著缩短者,提示舒张功能受损较E峰、A峰未融合者更严重。Objective To evaluate the relationship of left ventricular diastolic function with with effective diastolic by using echocardiogram.Methods The selected 90 subjects were examined with color Doppler,they were divided into three groups,and were subjected to measurement of early diastole E peak time（ET）,late diastole A paek time（AT）,from early diastole E peak to late diastole A paek time（E-AT）,cardiac cycle time（CCT）,their form of E peak and A peak were observed for calculating E-AT/CCT.Results The subjects of three groups were positively to mitral flow spectrum with positive double peaks.Ⅰgroup were E peak A peak,there was a time interval between E and A.E-AT/CCT50%;Ⅱgroup were E peak A peak,E-AT/CCT50%,there was a time interval between E and A,too,E-AT/CCT50%;Ⅲ group were E peak A peak,there was no time interval between E and A,E and A was fusion,E-AT/CCT50%.Conclusion Time and spectrum of mitral flow can reflect the left ventricular diastolic function.When E and A peak is fusion,and effective diastolic is significantly shorten,suggesting their hint serious damage of diastolic function.

关 键 词：超声心动图 有效舒张期 舒张功能 

分 类 号：R322.11[医药卫生—人体解剖和组织胚胎学] R445.1[医药卫生—基础医学]