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华西医学  2013 

孕11~40周正常胎儿静脉导管血流频谱分析

DOI: 10.7507/1002-0179.20130077, PP. 244-248

Keywords: 静脉导管,胎儿,超声

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Abstract:

目的 分析不同孕周正常胎儿静脉导管的频谱特征及血流频谱参数,得到不同孕周胎儿各频谱参数的正常参考值范围。方法 2011年6月-9月检测记录不同孕周胎儿的静脉导管波形及各频谱参数,统计各频谱参数的正常参考值范围,并评估与其孕周的相关性。结果 胎儿静脉导管的频谱速度参数与孕周呈正相关,阻力参数与孕周呈负相关,均以11~20周变化趋势较明显,其中3.59%的胎儿静脉导管频谱出现异常。结论 正常胎儿的静脉导管血流参数与孕周有较好的相关性,静脉导管频谱在孕16周前可出现生理性的异常。

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