Feasibility analysis of STIC technology combined with two-dimensional ultrasound in the screening of fetal heart malformations in the second trimester of pregnancy
Feasibility analysis of STIC technology combined with two-dimensional ultrasound in the screening of fetal heart malformations in the second trimester of pregnancy
Objective To explore the feasibility of four-dimensional ultrasound spatio-temporal image correlation(STIC)combined with two-dimensional ultrasound in the screening of fetal heart malformations in the second trimester of pregnancy.Methods Eight six pregnant women in the second trimester of pregnancy who were highly suspected of fetal heart malformation by two-dimensional ultrasound screening in our hospital were retrospectively analyzed from January 2021 to January 2023.With the fetal condition after birth or induction of labor is the gold standard for analyzing the diagnostic efficiency of STIC technology combined with two-dimensional ultrasound.Results Among 86 pregnant women,77 cases performed fetal induced labor and terminated pregnancy,and 9 cases continued to pregnancy.Fetal conditions after birth or induction of labor confirmed cardiac malformations in 83 cases,including 28 cases of ventricular septal defects,27 cases of vascular ring,10 cases of transposition of great vessels,9 cases of persistent truncus arteriosus,6 cases of single atrium/ventricle and 3 cases of tetralogy of Fallot.The accuracy,sensitivity,and specificity of STIC technology combined with two-dimensional ultrasound screening for cardiac malformation were 98%(84/86),98%(81/83),and 100%(3/3).The accuracy of STIC technology combined with two-dimensional ultrasound for screening cardiac malformation types is close to the gold standard(P＞0.05).Conclusion STIC technology combined with two-dimensional ultrasound has strong feasibility in the screening of fetal heart malformations in the second trimester of pregnancy,and the anatomical information is comprehensive and accurate.
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