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胎儿染色体异常诊断方法的研究进展 被引量:12

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摘要 胎儿细胞培养、染色体核型分析是胎儿染色体异常最经典的检测方法。诊断的准确性在培养的羊水细胞中可达99.4%~99.8%,绒毛取样(chorionic villus sampling,CVS)培养为97.5%~99.6%。但对小于10Mb碱基的染色体片段缺失或重复,普通核型难以检出,即使是高分辨染色体核型有时也难作出确切诊断。由于G显带本身的特点,
出处 《中华围产医学杂志》 CAS 2009年第2期105-108,共4页 Chinese Journal of Perinatal Medicine
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