Human Reproduction, Vol. 14, No. 5, 1255-1258,
May 1999
© 1999 European Society of Human Reproduction and Embryology
Three-dimensional endometrial volume calculation and pregnancy rate in an in-vitro fertilization programme
1 Department of Prenatal Diagnosis and Therapy, Frauenklinik der Universität, Bonn, Germany, 2 Department of Reproductive Medicine and Endocrinology, Frauenklinik der Universität, and 3 Institute for Medical Statistics, Universität Bonn, Germany
This study was designed to investigate the role of three-dimensional (3D) endometrial ultrasound in predicting the outcome of an in-vitro fertilization (IVF) programme. In 47 IVF cycles measurements of endometrial thickness and volume, as assessed by 3D transvaginal ultrasound on the day of oocyte retrieval, and concentrations of oestradiol and progesterone in the same patient sampled on the day of sonography, were related to the occurrence of a successful implantation. The overall pregnancy rate was 31.9% (15/47). Fifteen pregnant patients had a mean endometrial thickness and volume of 10.8 ± 2.3 mm (mean ± SD) and 4.9 ± 2.2 ml, respectively. Thirty-two non-pregnant patients had corresponding measurements of 11.8 ± 3.4 mm and 5.8 ± 3.4 ml respectively. Endometrial thickness varied widely in both groups, in pregnant patients from 6.9 to 16.0 mm, in non-pregnant patients from 6.5 to 21.1 mm. Oestradiol concentrations were not significantly correlated with either endometrial thickness or volume. The conclusion from the present data is that 3D volume estimation of the endometrium as well as analysis of endometrial thickness on the day of oocyte retrieval had no predictive value for conception in IVF cycles.
Key words: 3D ultrasound/endometrial volume/endometrial thickness/IVF/pregnancy rate
4 To whom correspondence should be addressed at: Department of Prenatal Diagnosis and Therapy, Frauenklinik, Sigmund-Freud-Str. 25, 53105 Bonn, Germany
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