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J Obstet Gynaecol Res. 2000 Dec;26(6):435-40.

Changes in uterine and ovarian arterial impedance during the periovulatory period in conception and nonconception cycles.

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Department of Obstetrics and Gynecology, Tama Nagayama Hospital, Nippon Medical School, Tokyo, Japan.



To evaluate whether the Doppler velocimetry of uterine and ovarian arteries during the periovulatory period in conception cycles differs from that in nonconception cycles.


Transvaginal color Doppler sonography was used to assess uterine and ovarian perfusion in 63 infertile women during the periovulatory period.


In the conception cycles (n = 16), the PI values of uterine arteries at the day of ovulation were significantly less than those in nonconception cycles (n = 47). There were no significant differences in the PI values of ovarian arteries between the conception and nonconception cycles.


In the present study, the conception cycles showed lower vascular impedance in the uterine during the periovulatory period than did the nonconception cycles. This endometrial perfusion presents an accurate noninvasive assay of uterine receptivity that can be used to predict the successful outcome of implantation and to reveal unexplained infertility problems.

[Indexed for MEDLINE]

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