552例正常胎儿房室环运动的组织多普勒分析  

552 cases with atriventriculaer annulus in normal fetuses were analyzed by tissue Doppler imaging

作　　者：耿丹明[1] 王鸿[1] 李慧忠[1] 

机构地区：[1]南京军区福州总医院超声诊断科,福建福州350025

出　　处：《中国优生与遗传杂志》2008年第11期59-59,63,F0004,共3页Chinese Journal of Birth Health & Heredity

摘　　要：目的探讨组织多普勒成像(TDI)检测胎儿房室环运动的可行性并测量其正常值。方法应用TDI技术观察552正常胎儿四腔心切面的二、三尖瓣环运动,测量其收缩、舒张期运动的峰值速度并进行比较。结果TDI技术可清晰显示二、三尖瓣环运动情况。收缩、舒张期二、三尖瓣环运动的峰值速度均随孕周增加而增大。收缩、舒张期三尖瓣环运动的峰值速度均大于二尖瓣环(P<0.01)。结论TDI可用于检测胎儿二、三尖瓣环运动及其随孕周的变化,进而评价胎儿心功能。Objective： To evaluate the feasibility of tissue doppler imaging （TDI） in normal fetuses, and to analyze peak velocitiea of atriovenrticular annulus and to measure the natural cost. Methods ： Tissus doppler images were obtained in 552 normal fetuses.The subje.cts were divided into three age groups. Measurements included peak velocities of the mitral annulus （MA） and the tricuspid annulus （TA） during systole and diastole. Results： Tissus dopplerimages can display syllabify the motion of the mitral annulus andthe tricuspid annulus. Systolic and diastolic peak velocities and Ea/Aa of both MA and TA increased with increasing of gestational age. The peal velocities of TA were bigger than those of MA （ P 〈0. 01 ）. Conclusion： TDI is useful in assessing the motion of MA and TA in fetuses and observing age -related alterations. Then to value the fetal cardiac function.

关 键 词：胎儿 组织多普勒成像 房室环运动 

分 类 号：R445.1[医药卫生—影像医学与核医学]