Evaluation of cardiac morphology and function of fetuses with different types of complete transposition of the great arteries using fetal heart quantification
10.3760/cma.j.cn131148-20250523-00290
- VernacularTitle:胎儿心脏定量分析技术对不同类型完全性大动脉转位胎儿心脏形态与功能的评估
- Author:
Yuanyuan JI
1
;
Bowen ZHAO
;
Mei PAN
;
Xiaomin ZHANG
;
Lijian HUANG
;
Tingting SHEN
;
Fang XIAO
Author Information
1. 浙江大学医学院附属邵逸夫医院超声科 浙江省胎儿心脏超声诊断技术指导中心 浙江大学邵逸夫临床医学研究所，杭州 310016
- Publication Type:Journal Article
- Keywords:
Ultrasonography;
Fetus;
Complete transposition of the great arteries;
Fetal heart quantification;
Spherical index
- From:
Chinese Journal of Ultrasonography
2025;34(9):792-798
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To study the cardiac morphology and function of fetuses with different types of complete transposition of the great arteries（cTGA）by using fetal heart quantification（fetal HQ）.Methods:A retrospective study was conducted on 50 fetuses diagnosed with cTGA through fetal echocardiography at Sir Run Run Shaw Hospital，Zhejiang University School of Medicine from July 2020 to December 2024. These cases were categorized into simple cTGA group（ n=31）and complex cTGA group（ n=19）based on the presence of concomitant cardiac anomalies. A control group of 160 normal fetuses with matched gestational ages was selected for comparison. Utilizing fetal HQ technology，the cardiac longitudinal diameter，transverse diameter，area，global sphericity index（GSI），left and right ventricular end-diastolic area（LVEDA，RVEDA），left and right ventricular fractional area change（LVFAC，RVFAC），left and right ventricular global longitudinal strain（LVGLS，RVGLS），and segmental sphericity index of 24 segments for both left and right ventricles（LVSI，RVSI）were measured. The analysis focused on comparing the differences among the simple cTGA group，complex cTGA group，and the control group. Results:Compared to the control group，the simple cTGA group exhibited significantly lower fetal GSI，LVEDA，RVFAC，and RVGLS（all P<0.05）. Statistically significant differences were observed in LVSI segments 1-4 and 10-17，as well as RVSI segments 1-7，9，and 15-23 compared to the control group（all P<0.05）. In comparison with the control group，the complex cTGA group demonstrated significantly reduced fetal GSI，LVFAC，LVGLS，RVFAC，and RVGLS（all P<0.05）. Significant differences were noted in LVSI segments 5-8 and 10-14，along with RVSI segments 1-14 and 24 compared to the control group（all P<0.05）. When compared to the simple cTGA group，the complex cTGA group showed significantly lower LVFAC，LVGLS，RVFAC，and RVGLS（all P<0.05），while GSI and LVEDA were significantly higher（all P<0.05）. Statistically significant differences were observed in LVSI segments 3-4，6-8，and 17，as well as RVSI segments 10-19 between the complex cTGA group and the simple cTGA group（all P<0.05）. Conclusions:The comprehensive parameters provided by Fetal HQ facilitate the assessment of cardiac morphology and function in cTGA fetuses，enabling a deeper understanding of the alterations in cardiac structure and function across different types of cTGA. This advanced analysis offers valuable reference information for clinical guidance during pregnancy.
