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| Effect of Z-score value of fetal ultrasound biological index for evaluating fetal growth and development |
| Yuyao People's Hospital, Ningbo，Zhejian Province, 315400 |
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Abstract To investigate the effect of Z-score value of fetal ultrasound biological index for evaluating fetal growth and development. Methods: The clinical data of pregnant women were collected. Among them, 125 normal pregnant women with normal body weight fetuses were in control group, and 103 pregnant women with fetal macrosomia were included in group A, 48 pregnant women with fetal growth restriction were included in group B, and 106 pregnant women with gestational diabetes (GD) and with satisfactory glycemic control and delivered normal birth weight newborn were included in group C. The values of fetal head circumference, abdominal circumference, head and abdomen circumference ratio, double top diameter, femur length, Z-score values of abdominal circumference and head circumference ratio, and other growth parameters during the first (20+1-24 gestational weeks), the second (28+1-33 gestational weeks), and the third (34+1 gestational weeks -delivery) trimester of pregnancy in the four groups were examined by ultrasound. Results: In the second trimester of pregnancy, the abdominal circumference of the fetus in group A was significant higher than that of the fetus in the control group. The growth parameters of the fetus in group A and B during the third trimester of pregnancy were significant different from those of the fetus in the control group, and the Z-score value of the abdominal circumference of the fetus in group A and B had became more and more different from that of the fetus in the control group followed the gestational weeks increased. The Z-score value of the abdominal of the fetus in group C during the third trimester of pregnancy was significant higher than that of the fetus in the control group (P<0.05), but that of the fetus in group C during the second trimester of pregnancy had no significant different from that of the fetus in the control group (P>0.05). In group A, there were significant different in the abdominal circumference value and the Z-score value of the ratio of head-abdominal circumference between the women with GD and the women without GD (P<0.05). Conclusion: The Z-score value of ultrasound biological indicators can accurately and intuitively evaluate the growth and development of the fetus during different stages of pregnancy with high sensibility of evaluation.
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