Simultaneous A- and B-Scan Ultrasound Guidance of Aspiration Needles During Amniocentesis in Early Second Trimester for Prenatal Genetic Disease Detection — A Preliminary Report

  • Charles W. Hohler


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.


Amniotic Fluid Fetal Cell Therapeutic Abortion Amniotic Fluid Sample Strict Aseptic Technique 
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  1. 1.
    Goldberg, B.B., Pollack, H.M.: Ultrasonic Aspiration Transducer. Radiology 102:187–189, January, 1972.Google Scholar
  2. 2.
    Bang, J., Northeved A.: A New Ultrasonic Method for Transabdominal Amniocentesis. American Journal of Obstetrics and Gynecology 114:599, November, 1972.Google Scholar

Copyright information

© American Institute of Ultrasound in Medicine and Plenum Press, New York 1975

Authors and Affiliations

  • Charles W. Hohler
    • 1
  1. 1.Department Obstetrics-GynecologyUniversity of Rochester School of Medicine and DentistryRochesterUSA

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