定量组织速度成像技术及组织追踪成像技术评价妊娠期高血压疾病患者心功能

Assessment of ventricular function in patients with hypertensive disorders complicating pregnancy by quantitative tissue velocity imaging and tissue tracking imaging

目的:采用定量组织速度成像技术(quantitative tissue velocity imaging,QTVI)及组织追踪成像技术(tissue tracking imaging,TTI)超声心动图评价妊娠期高血压疾病(hypertensive disorders complicating pregnancy,HDCP)患者心功能。方法:测量30例HDCP患者(HDCP组)和50例健康孕妇(对照组),在心尖四腔心切面,用QTVI及TTI测量左右心室心肌运动的收缩期峰值速度、Tei指数、收缩期峰值位移。结果:HDCP组与对照组的EF值分别为(61.00±2.35)%、(62.00±3.82)%,差异无统计学意义。HDCP组与对照组左心室心肌运动的收缩期峰值速度分别为(7.37±1.82)cm/s、(8.13±1.64)cm/s,右心室收缩期心肌运动峰值速度分别为(6.90±0.52)cm/s、(7.80±0.38)cm/s,左心室收缩期峰值位移分别为(10.43±1.35)mm、(11.95±1.95)mm,右心室收缩期峰值位移分别为(7.20+1.18)mm、(8.60±1.89)mm,左心室Tei指数分别为0.59±0.06、0.46±0.07,右心室Tei指数分别为0.62±0.09、0.47±0.08,2组间比较,差异均有统计学意义(P<0.05)。结论:QTVI及TTI超声心动图可定量评价HDCP患者心功能改变。

Objective：To assess the ventricular function in patients with hypertensive disorders complicating pregnancy（HDCP）by quantitative tissue velocity imaging（QTVI） and tissue tracking imaging（TTI）. Methods：30 patients with HDCP and 50 healthy pregnancies（control group） were studied with QTVI and TTI. From the apical four chamber,the peak systolic velocities（Vs）,the Tei indices and the peak systolic displacements（Ds） of both ventricles were measured. Results：The ejection fraction of HDCP and control group were（61±2.35）% and（62±3.82）%,respectively and there was no significant difference between the two groups.Vs of left ventricle of HDCP and control group were（7.37±1.82） cm/s,（8.13±1.64） cm/s,respectively,Vs of right ventricle were（6.9±0.52） cm/s,（7.8±0.38） cm/s,respectively. Ds of left ventricle of HDCP and control group were（10.43±1.35） mm,（11.95±1.95） mm,respectively,of right ventricle were（7.2＋1.18） mm,（8.6 ±1.89） mm,respectively. The Tei index of left ventricle of HDCP and control group were 0.59 ±0.06,0.46 ±0.07,respectively,of right ventricle were 0.62 ±0.09,0.47 ±0.08,respectively.There was significant difference between the two groups（P 0.05）. Conclusion：QTVI and TTI can quantitatively assess the ventricular function in patients with HDCP.