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目的:研究图像倒转法在中孕胎儿心脏超声筛查中的应用及临床意义。方法:选取346例18～24周的中孕胎儿行超声心脏筛查,其中174例腹前式胎儿采用常规超声方法,172例腹后式胎儿采用常规超声结合图像倒转法,对显示率及诊断准确率进行比较。结果:采用常规超声,腹前式胎儿在左室长轴观、左室流出道观、右室流出道观、大动脉短轴观的显示率上明显优于腹后式,差异有统计学意义(P<0.05);对腹后式胎儿采用常规超声结合图像倒转法后,左室长轴观、左室流出道观、右室流出道观、大动脉短轴观的显示率较常规超声明显提高,差异有统计学意义(P<0.05)。常规结合图像倒转法检出胎儿心脏异常检出率(100%)高于常规方法(80%)。结论:应用图像倒转法在腹后式胎儿心脏检查中能够更为简便快捷显示胎儿心脏的各个标准切面,提高筛查的准确性。
Objective: To study the application and clinical significance of image inversion in fetal ultrasound screening in second trimester of pregnancy. Methods: 346 cases of 18-24 weeks pregnant fetus were enrolled in echocardiography screening. Among them, 174 cases of prenatal fetuses underwent routine ultrasound and 172 cases of peritoneal fetuses underwent conventional ultrasound combined with image inversion. The detection rate and diagnosis Accuracy for comparison. Results: Using conventional ultrasound, the anastomosis of the fetus in the left ventricle was significantly better than that of the ventral posterior in the long axis of the left ventricle, the view of the left ventricular outflow tract, the right ventricle outflow tract and the short axis of the aorta, with significant difference (P < 0.05). Compared with conventional ultrasound, the display rate of left ventricular long axis view, left ventricular outflow tract view, right ventricular outflow tract view and aorta short axis view was significantly higher than conventional ultrasound Significance (P <0.05). The detection rate of fetal heart abnormality (100%) was higher than that of the conventional method (80%) by the routine combined with image inversion method. Conclusion: The application of image inversion method in the abdominal fetal heart examination can be more easily and quickly display all standard fetal heart sections, to improve the accuracy of screening.