Study of regional left ventricular longitudinal function in fetuses with gestational diabetes mellitus by velocity vector imaging
10.3760/cma.j.issn.1004-4477.2011.01.015
- VernacularTitle:速度向量成像技术评价妊娠期糖尿病胎儿左室心肌节段功能的探讨
- Author:
Xiaoyan WANG
;
Qichang ZHOU
;
Darong PU
;
Qinghai PENG
;
Shi ZENG
;
Yi TAN
- Publication Type:Journal Article
- Keywords:
Ultrasonography,prenatal;
Diabetes,gestational;
Fetus;
Ventricular function,left
- From:
Chinese Journal of Ultrasonography
2011;20(1):44-48
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the clinical value of velocity vector imaging in the assessment of regional left ventricular longitudinal myocardial function in fetuses with gestational diabetes mellitus (GDM). Methods Digital dynamic four-chamber views of 98 fetuses with GDM and 135 normal fetuses were collected and analyzed using velocity vector imaging. The regional tissue velocity, strain and strain rate of the interventricular septum and left lateral wall were measured in systole and diastole. Results Two hundred and seven of 233 cases were analyzed successfully. Systolic velocity(Vs) and diastolic velocity(Vd)were age-dependent, Vs and Vd were both gradually decreased from the basal segment to the apical segment in the left ventricle( P ＜0. 05). The Va after 32+0 weeks and Vd after 28+0 weeks and systolic strain(S),systolic strain rate(SRs) and diastolic strain rate(SRd) in left ventricle of fetuses with GDM after 24+0weeks were obviously lower than the corresponding parameters of normal fetuses ( P ＜0. 05). Conclusions Velocity vector imaging can evaluate the fetal regional left ventricular longitudinal myocardial function.
