The Diagnostic Value of Spectral Doppler Ultrasound in Evaluating Fetal Pulmonary Vein for Total Anomalous Pulmonary Venous Connection in Fetuses
Objective To evaluate the diagnostic value of spectral Doppler ultrasound in evaluating fetal pulmonary veins for total anomalous pulmonary venous connection (TAPVC) in fetuses. Methods The findings of conventional ultrasound and spectral Doppler ultrasound in 22 post-induction postmortem cases and 4 post-delivery echocardiography-confirmed cases were retrospectively analyzed,and their diagnostic performance for conventional ultrasound and spectral Doppler ultrasound was compared. Results Among the 26 confirmed TAPVC cases,7 were intracardiac type,5 were subcardiac type,and 14 were sup-racardiac type,as verified by postmortem and postpartum echocardiography. Statistically significant differences in ventricular size,vertical venous obstruction,and associated malformations were observed among TAPVC fetuses (P<0.005). By accurately measur-ing the flow velocity and direction of abnormal drainage blood,spectral Doppler ultrasound showed a higher diagnostic sensitivity for TAPVC than conventional ultrasound (P<0.05). By ROC curve analysis,the area under the curve (AUC) for spectral Doppler ultrasound was higher than conventional ultrasound (P<0.05). Conclusion Spectral Doppler ultrasound offers superior diagnostic efficiency for TAPVC compared to conventional ultrasound,and it is recommended for promotion in clinical practice.
Total anomalous pulmonary venous connectionSpectral Doppler ultrasoundConventional ultrasoundDiagnostic efficiency
万方数据
维普
