摘要
目的利用脉冲组织多普勒超声(PW-TDI)评价妊娠高血压综合征(PIH)对胎儿心脏功能的影响。方法选择PIH孕妇62例(PIH组),正常妊娠孕妇60名(对照组),在胎儿心脏四腔切面,应用PW-TDI测量左心室(LV)侧壁、右心室(RV)侧壁、室间隔(IVS)与房室环交界处心肌运动速度,获得舒张早期E波峰值速度(Em)、舒张晚期A波峰值速度(Am)、收缩期S波峰值速度(Sm),计算Em/Am比值,进行统计分析。结果随着孕周增大,对照组胎儿RV、LV的Em增高,IVS、LV的Sm增高,RV、IVS的Em/Am增大(P均<0.05),PIH组胎儿LV、RV、IVS的Em、Sm升高,RV、LV的Am升高,RV、IVS的Em/Am降低,LV的Em/Am升高(P均<0.05)。与相同孕周正常胎儿相比,PIH组胎儿LV、RV、IVS的Em、Am、Em/Am差异有统计学意义(P均<0.05);≥30周的胎儿中,PIH组较对照组RV的Sm增高(P<0.05),<30周的胎儿中,PI H组较对照组IVS、LV的Sm降低(P均<0.01)。结论 PI H患者胎儿心脏舒张功能与收缩功能受损。PW-TDI可评价PI H患者胎儿心脏形态和功能。
Objective To observe the value of pulsed wave tissue Doppler imaging（PW-TDI） in the evaluation on fetal heart function in pregnancy-induced hypertension（PIH）.Methods Sixty-two patients with PIH（PIH group） and 60 normal pregnant women（control group） were enrolled.From four-chamber view,ventricular myocardial velocities were measured at the basal pans of the left ventricular（LV） lateral wall,right ventricular（RV） lateral wall and inverventricular septum（IVS） with PW-TDI.Ventricular myocardial velocities included systolic myocardial velocity（Sm）,early diastolic myocardial velocity（Em）,late diastolic myocardial velocity（Am） and the Em/Am ratio were statistical analyzed.Results In fetuses of control group,the Em of RV,LV,the Sm of IVS,LV and Em/Am of RV,IVS increased with increasing gestational week（P0.05）.In PIH group,the Em,Sm of LV,RV,IVS and the Am of RV,LV increased,the Em/Am of RV,IVS decreased,the Em/Am of LV increased（all P0.05）.Compared with fetuses of the same gestational week in control group,the Em,Am,Em/Am of LV,RV,IVS in fetuses of PIH group were significantly different（all P0.05）.In fetuses ≥30 gestational week,the Sm of RV of PIH group was higher than that of control group（P0.05）,while in fetuses 30 gestational week,the Sm of IVS,LV of PIH group were lower than those of control group（all P0.01）.Conclusion Both systolic and diastolic function of heart are damaged in PIH fetuses.PW-TDI can evaluation the heart structure and function of PIH fetuses.
出处
《中国医学影像技术》
CSCD
北大核心
2011年第7期1447-1450,共4页
Chinese Journal of Medical Imaging Technology
关键词
高血压
妊娠
胎儿
超声心动描记术
多普勒
脉冲
Hypertension
pregnancy-induced
Fetus
Echocardiography
Doppler
pulsed
