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Review article

Review article Introduction Remarkable hemodynamic changes occur in the first trimester of pregnancy, the most prominent is the continuous growth and development of the uteroplacental and fetoplacental circulation. Until recently, there has been no reliable tool to obtain noninvasive measurements of maternal, embryonic or fetal blood flow. The introduction of transvaginal color Doppler has produced an imprecedented improvement in the recognition of blood vessels, indicating anatomic location plus direction and velocity of flow. With conventional ultrasound it is often difficult to identify the same vessel reproducibly, and it may be impossible to differentiate small vessels from other soft-tissue areas or fluid-filled structures. Color Doppler overcomes this since flow is displayed over the whole scanning plane as compared with the single line of sight available with pulsed Doppler. It is not surprising that in a relatively short period of time this new technique has gained great popularity being the latest and most exciting advance in ultrasound diagnosis. In 1987, our group has published in this journal the first paper on the successful use of color Doppler in clinical obstetrics [20]. Two years later a paper on the use of transvaginal color Doppler appeared [21], followed by several studies on normal and http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Perinatal Medicine de Gruyter

Review article

Journal of Perinatal Medicine , Volume 21 (6) – Jan 1, 1993

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Publisher
de Gruyter
Copyright
Copyright © 2009 Walter de Gruyter
ISSN
0300-5577
eISSN
1619-3997
DOI
10.1515/jpme.1993.21.6.419
Publisher site
See Article on Publisher Site

Abstract

Introduction Remarkable hemodynamic changes occur in the first trimester of pregnancy, the most prominent is the continuous growth and development of the uteroplacental and fetoplacental circulation. Until recently, there has been no reliable tool to obtain noninvasive measurements of maternal, embryonic or fetal blood flow. The introduction of transvaginal color Doppler has produced an imprecedented improvement in the recognition of blood vessels, indicating anatomic location plus direction and velocity of flow. With conventional ultrasound it is often difficult to identify the same vessel reproducibly, and it may be impossible to differentiate small vessels from other soft-tissue areas or fluid-filled structures. Color Doppler overcomes this since flow is displayed over the whole scanning plane as compared with the single line of sight available with pulsed Doppler. It is not surprising that in a relatively short period of time this new technique has gained great popularity being the latest and most exciting advance in ultrasound diagnosis. In 1987, our group has published in this journal the first paper on the successful use of color Doppler in clinical obstetrics [20]. Two years later a paper on the use of transvaginal color Doppler appeared [21], followed by several studies on normal and

Journal

Journal of Perinatal Medicinede Gruyter

Published: Jan 1, 1993

There are no references for this article.