对比分析四维容积超声及彩色多普勒超声在胎儿肺静脉异位 引流诊断中的应用.

Objective: To compare and analysis the application values of four-dimensional volumetric ultrasonography and color Doppler ultrasonography in the diagnosis of fetal anomalous pulmonary venous connection (APVC). Methods: A retrospective analysis method was used. From January 2019 to January 2022, 60 cases of pregnant women with abnormal fetal pulmonary vein drainage who were diagnosed and treated in our hospital were selected as the research subjects. Four-dimensional volume ultrasound and color Doppler ultrasound were given to diagnosis, and to record the images characteristics and determine the diagnostic values. Results: In the 60 pregnant women, there were 51 cases were diagnosed as fetal pulmonary venous drainage by color Doppler ultrasonography, and the diagnostic sensitivity was 85.0 %. Four-dimensional volume ultrasonography judged 59 cases of fetal pulmonary vein ectopic drainage, the diagnostic sensitivitye was 98.3 %. The diagnostic sensitivity of fetal pulmonary vein ectopic drainage by four-dimensional volume ultrasonography were significantly higher than that by color Doppler ultrasonography (P<0.05). The diagnostic specificity of both color Doppler ultrasonography and four-dimensional volume ultrasonography were 100.0 %. There were 32 cases were diagnosed as supracardiac type and 28 cases were inferior cardiac type. The pulmonary vein drainage route of supracardiac type was pulmonary vein-vertical vein-right superior vena cava (22 cases), pulmonary vein-vertical vein - Left superior vena cava (10 cases), the subcardiac type of pulmonary vein drainage route is pulmonary vein-vertical vein-left brachiocephalic vein-right superior vena cava (6 cases), pulmonary vein-vertical vein-portal vein (22 cases). There were 32 cases of cardiac malformation, and the combined malformation rate was 53.3 %; There were 51 cases of pregnant women terminated their pregnancy, 9 cases of pregnant women continued pregnancy, 8 cases of pregnant women were died in the neonatal period without treatment, and 1 case was died at 3 months of age. Conclusion: Compares with color Doppler ultrasound, the application of four-dimensional volume ultrasound in the diagnosis of fetal pulmonary venous drainage can improve the diagnostic sensitivity, can effectively reflect the pulmonary venous return, and can guide early clinical intervention. [ABSTRACT FROM AUTHOR]