目的：分析中晚孕期胎儿复杂心脏畸形静脉导管频谱特征及血流参数，探讨不同类型复杂心脏畸形其血流频谱及参数的变化。方法：记录并分析58例胎儿复杂心脏畸形的静脉导管波形及频谱参数，探讨异常的静脉导管频谱及参数对鉴别不同类型胎儿复杂心脏畸形的提示意义。结果：胎儿右心系统畸形为主型的静脉导管频谱S、D、RI、PVIV及S/A均明显增高，而A波显著降低甚至消失或反向。左心系统畸形为主型S、D均增高，而A、RI、PVIV及S/A无明显变化。圆锥干畸形为主型及巨大房室间隔缺损为主型S、D、A、RI、PVIV及S/A无明显变化。结论：静脉导管异常血流频谱参数可部分提示不同类型胎儿心脏畸形。
Abstract
Objective: To analyze spectrum parameters of fetal ductus venosus of complex fetal heart malformations in middle and late pregnancy, and to find out the relationship between different complex fetal heart malformations and DV waveform characteristics. Method: DV waveform and spectrum parameters of complex fetal heart malformations were recorded, followed-up and grouped. Results: In the cases with right ventricular system abnormalities, the S, D, RI, PVIV and S/A increased significantly, while A waves significantly reduced, disappeard or even reversed. In the cases with left ventricular system abnormalities, the S and D increased, while A, RI, PVIV and S/A had no obvious change. The S, D, A, RI, PVIV and S/A in cases with conus arteriosus abnormalities and huge atrioventricular septal defect had no obvious difference. Conclusion: Abnormal DV waveform can be a clue for different types of complex fetal heart malformations.
关键词
心脏缺损 /
先天性；胎儿疾病；超声检查 /
产前
Key words
Heart defects, congenital /
Fetal diseases /
Ultrasonography, prenatal
中图分类号：
Ｒ714.53
R445.1
Ｒ541.1
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