Access the full text.
Sign up today, get DeepDyve free for 14 days.
References for this paper are not available at this time. We will be adding them shortly, thank you for your patience.
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 of Perinatal Medicine – de Gruyter
Published: Jan 1, 1993
Read and print from thousands of top scholarly journals.
Already have an account? Log in
Bookmark this article. You can see your Bookmarks on your DeepDyve Library.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Copy and paste the desired citation format or use the link below to download a file formatted for EndNote
Access the full text.
Sign up today, get DeepDyve free for 14 days.
All DeepDyve websites use cookies to improve your online experience. They were placed on your computer when you launched this website. You can change your cookie settings through your browser.