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1原文摘要Abnormal flowin the ductus venosus at 11-13 weeks of gestationis associated withincreased risk for trisomy 21 and other chromosomal abnorma-lities.In euploid fetuses,abnormal flow in the ductus venosus is associated with anincreased risk for cardiac defects.However,most studies examining such a
1 Abstracts Abnormal flowin the ductus venosus at 11-13 weeks of gestationis associated withincreased risk for trisomy 21 and other chromosomal abnorma- lities. In euploid fetuses, abnormal flow in the ductus venosus is associated with an incremental risk for cardiac defects. However, most studies examining such a