Study of Regional Left Ventricular Longitudinal Function in Fetuses with Gestational Diabetes Mellitus by Velocity Vector Imaging.
OBJECTIVE
The purpose of this study was to investigate the clinical value of velocity vector imaging in the assessment of regional left ventricular longitudinal function in fetuses with gestational diabetes mellitus.


METHODS
Digital dynamic four-chamber views of 98 fetuses with gestational diabetes mellitus 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 separately measured in systole and diastole.


RESULTS
A total of 207 of 233 cases were analyzed successfully. Vs (systolic velocity) and Vd (diastolic velocity) were age-dependent and gradually decreased from the basal segment to the apical segment in the left ventricle (P < 0.05). The Vs after 32(+0) weeks, Vd after 28(+0) weeks, and S (strain), SRs (systolic strain rate), and SRd (diastolic strain rate) after 24(+0) weeks in the left ventricle of fetuses with GDM were obviously lower than the corresponding parameters of normal fetuses (P < 0.05).


CONCLUSION
VVI can evaluate the fetal regional left ventricular longitudinal function.
['Wang|Xiaoyan|X|', 'Lian|Yajun|Y|', 'Wang|Xiaofang|X|', 'Tian|Min|M|']
D000328:Adult D016640:Diabetes, Gestational D004452:Echocardiography D054459:Elasticity Imaging Techniques D005260:Female D006801:Humans D007090:Image Interpretation, Computer-Assisted D008297:Male D011247:Pregnancy D015203:Reproducibility of Results D012680:Sensitivity and Specificity D016216:Ultrasonography, Prenatal D018487:Ventricular Dysfunction, Left D055815:Young Adult
gestational diabetes mellitus velocity vector imaging cardiac function echocardiography fetus