Application of Spatio-Temporal Image Correlation-M Mode Technique and Tissue Doppler Imaging
Technique in Evaluation of Right Ventricular Function of the Normal Fetuses
LUO Binga, WANG Yichenga, YANG Hea, WEN Dehuia, ZHANG Liweia , JIAOGuiqingb, GUO Huaxianc
a. Department of Ultrasound; b. Department of Obstetrics; c. Department of Pediatrics, The 1st Affiliated Hospital of Hebei North
University, Zhangjiakou Hebei 075000, China
Abstract:Objective To explore the application of spatio-temporal image correlation (STIC)-M mode technique and tissue Doppler
imaging (TDI) technique in evaluation of right ventricular function of the normal fetuses. Methods A total of 300 pregnant women
in our hospital were enrolled, whose gestational age ranged from 20 to 40 weeks. There was no obvious abnormalities in fetal intracardiac
and extracardiac structures. According to gestational weeks, they were divided into four groups: 20+1 to 24 weeks (group A), 24+1 to
28 weeks (group B), 28+1 to 32 weeks (group C), 32+1 to 36 weeks (group D), 36+1 to 40 weeks (group E), 15 cases per gestational
week. Tricuspid Annular Displacement (TAD) was measured by STIC-M technique. The early and late diastolic myocardial velocity
of tricuspid annulus (E', A') were measured by TDI technique, and the E'/A' was calculated. Results Compared to the previous group,
the TAD, E', E'/A' in each group were significantly different (P<0.05). Compared to the previous group, the differences of the A'
among the A to D groups were significantly different (P<0.05). The A' value had no statistical difference between the D group and the
E group (P>0.05). The TAD, E', A' and E'/A' value were positively associated with gestational weeks (P<0.05). With the increase of
the gestational weeks, the TAD, E', A' and E'/A' value were increased. The E' was increasing faster than the A' and E'/A' was near to 1.
Conclusion It is a simple and feasible method to use STIC-M mode technique to measure TAD and to use TDI technique to measure
the E', A', E'/A' of the fetuses, and can accurately evaluate fetal right ventricular systolic and diastolic function in time. Timely finding
fetal cardiac dysfunction have important clinical significance.
罗兵a,王义成a,杨贺a,温德惠a,张力维a,焦桂青b,郭华贤c. 时间-空间相关成像-M型技术联合组织多普勒技术评价正常胎儿右心功能[J]. 中国医疗设备, 2019, 34(9): 77-79.
LUO Binga, WANG Yichenga, YANG Hea, WEN Dehuia, ZHANG Liweia , JIAOGuiqingb, GUO Huaxianc. Application of Spatio-Temporal Image Correlation-M Mode Technique and Tissue Doppler Imaging
Technique in Evaluation of Right Ventricular Function of the Normal Fetuses. China Medical Devices, 2019, 34(9): 77-79.