胎盘弹性平均值与脐动脉S/D对胎儿预后不良的预测及其#br#
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Abstract Objective: To investigate whether the elastic value of placenta and umbilical artery S/D can predict poor prognosis of fetus, and analyze the relationship between them. Methods: One hundred and fifty cases of pregnant women were selected with gestation weeks of 37~40. By SuperSonic Imagine Aix Plorer real-time shear wave elastography ultrasound diagnostic apparatus, the elastic value of placenta and umbilical artery S/D were measured before childbirth and poor prognosis of fetus was observed. Finally, the elastic value of placenta was analyzed by ROC curve, to find the optimal critical value which can predict poor prognosis of fetus. Two groups were divided by the critical value, then comparison was made between the difference of umbilical artery S/D and the elastic value. Results: On ROC curve, the area under the curve(AUC) of the elastic value of placenta was 0.86 and the threshold of diagnosing poor prognosis of fetus was 26.5 kPa with a sensitivity of 82.4% and a specificity of 80.7%. There was a significant difference(P<0.05) of umbilical artery S/D between two groups(≥26.5 kPa and <26.5 kPa). The elastic value of placenta was positively correlated with umbilical artery S/D(r=0.822, P<0.05). Conclusion: It will help to predict the prognosis of fetus by combining the elastic value of placenta with umbilical artery S/D.

Key words： Fetus Ultrasonography, prenatal

Received: 17 April 2015

PACS:	Ｒ714.51
	Ｒ445.1

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	Articles by authors
	ZHANG Wei-wei1
	HAN Xiu-mei2
	ZHANG Zhen1

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ZHANG Wei-wei1,HAN Xiu-mei2,ZHANG Zhen1. Prediction of poor prognosis of fetus by the elastic value of placenta and#br# umbilical artery S/D and their correlation analysis[J]. JOURNAL OF CHINA MEDICAL IMAGING, 2016, 27(1): 45-47.

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http://www.jccmi.com.cn/EN/ OR http://www.jccmi.com.cn/EN/Y2016/V27/I1/45

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