chromosome disorders

基本解释

Ultrasonography alone does not determine if a pregnancy has Down syndrome or other chromosome disorders;
只做超声检查不能确定胎儿有唐氏综合征或其他染色体病变；
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The variation of the circulating DNA levels can also be used for diagnosis of preeclampsia, premature delivery, and fetal chromosome disorders.
游离DNA水平的变化还可被用作某些妊娠相关疾病如先兆子、早产和胎儿染色体疾病的临床诊断新指标。
Currently, we are able to perform PGD for many genetic conditions including single gene disorders and chromosome abnormalities.
目前，使用PGD技术，可以测试出许多种不同的疾病，包括非整倍体，单基因病和染色体易位等。
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