The use of ovarian ultrasonography in monitoring ovulation induction

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Abstract
Ovarian ultrasonography is a new diagnostic technique which has become almost essential in monitoring ovulation. Recent improvements in ultrasound technology have allowed for accurate assessment of the number and size of the developing follicles and their rate of growth, as well as ovulation and postovulatory events. In the non-stimulated cycle follicular size correlates well with optimal maturation and there is a linear correlation between follicular diameter and plesma estradiol (E2 levels). In stimulated cycles, because of asynchrony of various recruited coliorts of follicles, these rules are not as steadfast, These observations indicate that when there is endogenous gonadotropic activity, follicular growth stimulated by human menopausal gonadotropins (hMG) does not develop synchronously. The aim should be, therefore, not only to improve the monitoring system but mainly to synchronize the cohorts of follicles recruited for development in any one cycle by a better regimen for ovalation induction. In view of the high success rate of hMG treatment in patients without endogenous gonadotropin secretion, it is tempting to speculate that inducing similar conditions in women with endogenous gonadotropin production may have a significant change in the pattern of follicular development in their conception rate.

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