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Journal of Ultrasound in Medicine, Vol 20, Issue 2 125-134, Copyright © 2001 by American Institute of Ultrasound in Medicine
Assessment of endometrial receptivity by transvaginal color Doppler and three-dimensional power Doppler ultrasonography in patients undergoing in vitro fertilization procedures
S. Kupesic, I. Bekavac, D. Bjelos and A. Kurjak
Department of Obstetrics and Gynecology, Medical School, University of Zagreb, Sveti Duh Hospital, Croatia.
The objective of this study was to investigate the usefulness of
transvaginal color Doppler and three-dimensional power Doppler
ultrasonography for the assessment of endometrial receptivity. A total of
89 patients undergoing in vitro fertilization procedures were evaluated for
endometrial thickness and volume, endometrial morphology, and
subendometrial perfusion on the day of embryo transfer. Neither the volume
nor the thickness of the endometrium on the day of embryo transfer had a
predictive value for conception during in vitro fertilization cycles (P
> .05). Patients who became pregnant were characterized by a
significantly lower resistance index, obtained from subendometrial vessels
by transvaginal color Doppler ultrasonography (resistance index = 0.53 +/-
0.04 versus 0.64 +/- 0.04, pregnant versus not pregnant, respectively; P
< .05), and a significantly higher flow index (13.2 +/- 2.2 versus 11.9
+/- 2.4; P < .05), as measured by a three-dimensional power Doppler
histogram. No difference was found in the predictive value of scoring
systems analyzing endometrial thickness and volume, endometrial morphology,
and subendometrial perfusion by color Doppler and three-dimensional power
Doppler ultrasonography. The high degree of endometrial perfusion shown by
color Doppler ultrasonography and on three-dimensional power Doppler
histograms on the day of embryo transfer can indicate a more favorable
endometrial milieu for successful in vitro fertilization.
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