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Archives of Gynecology and Obstetrics

, Volume 256, Issue 1, pp 5–8 | Cite as

Relation between gestational sac diameter, crown-rump length, and maternal serum estradiol, progesterone, and prolactin levels in early pregnancy

  • T. Ohtsuka
  • M. Taga
  • T. Suzuki
  • H. Minaguchi
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Abstract

In 152 patients with an early pregnancy which was subsequently normal, we measured the maternal serum levels of estradiol (E2), progesterone (P4) and prolactin (PRL) as well as the diameter of gestational sac (GS) and the crown-rump length (CRL) of the embryo by transvaginal ultrasonography. The maternal serum level of E2 had the closest statistically significant correlation with both the GS diameter (r = 0.769,P < 0.01) and the CRL (r = 0.736, P < 0.001). P4 and PRL concentrations showed less correlation with embryo development.

Key words

Gestational sac Crown-rump length Estradiol Fetal development 

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Copyright information

© Springer-Verlag 1995

Authors and Affiliations

  • T. Ohtsuka
    • 1
  • M. Taga
    • 1
  • T. Suzuki
    • 1
  • H. Minaguchi
    • 1
  1. 1.Department of Obstetrics and GynecologyYokohoma City University School of MedicineYokohamaJapan

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