Simultaneous A- and B-Scan Ultrasound Guidance of Aspiration Needles During Amniocentesis in Early Second Trimester for Prenatal Genetic Disease Detection — A Preliminary Report
Of all the indications for amniocentesis, prenatal genetic disease detection is rapidly becoming a most useful and gratifying part of clinical obstetric practice. The optimum time for aspiration of amniotic fluid appears to be at about 16 weeks gestation when the amniotic sac contains approximately 175 ml. of fluid, and is approximately 8 cm. in diameter. This allows the now necessary 2–3 weeks for growth of fetal cells from the amniotic fluid in time for therapeutic abortion of genetically afflicted fetuses should that be desired by the parents.
KeywordsPrep Stake Rubella
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