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. 2007 May;24(5):155-8.
doi: 10.1007/s10815-007-9113-1. Epub 2007 Mar 8.

Endometrial thickness and volume by three-dimensional ultrasound one week after embryo transfer to detect pregnancy

Wellington Paula Martins  1 , Rui Alberto Ferriani, Rosana Maria dos Reis, Carolina Oliveira Nastri, Francisco Mauad Filho
Affiliations

Endometrial thickness and volume by three-dimensional ultrasound one week after embryo transfer to detect pregnancy

Wellington Paula Martins et al. J Assist Reprod Genet. 2007 May.

Abstract

Purpose: Determine if the evaluation of endometrium one week after embryo transfer can predict pregnancy.

Methods: Endometrial volume and thickness were evaluated by three-dimensional ultrasound in 40 patients one week after embryo transfer. These results were compared to serum pregnancy test performed one week later.

Results: Eighteen patients have achieved pregnancy. A significant difference was found for endometrial volume: 6.49+/-1.97 mL versus 3.40+/-1.11 mL (pregnant versus not pregnant); and thickness: 11.15+/-2.75 mm versus 9.77+/-1.85 mm. The ROC curve was used to detect the best cutoff values: endometrial volume of 3.48 mL (sensitivity-100%, specificity-68.2%) and endometrial thickness of 10.3 mm (sensitivity-72.2%, specificity-77.3%). The area under curve was significant higher for endometrial volume (0.909 versus 0.745, p=0.027). No pregnancy was achieved in women who had an endometrial volume <3.8 mL (15 patients) or thickness <7.9 mm (3 patients).

Conclusions: The endometrial volume and thickness were significant higher in pregnant women and this difference was more prominent for endometrial volume.

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Figures

Fig. 1
Fig. 1
ROC (Receiver operating characteristic) curves for endometrial volume and thickness evaluated by 3DUS one week after ET to predict pregnancy
See this image and copyright information in PMC

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