Journal of the Society for Gynecologic Investigation

 

Advanced Search

Journal Navigation

Journal Home

Subscriptions

Archive

Contact Us

Table of Contents

Register here to gain access to SAGE's 500+ Journals Online

SAGETRACK

Sign In to gain access to subscriptions and/or personal tools.
This Article
Right arrow Full Text (PDF)
Right arrow References
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to Saved Citations
Right arrow Download to citation manager
Right arrowRequest Permissions
Right arrow Request Reprints
Right arrow Add to My Marked Citations
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Magann, E. F.
Right arrow Articles by Morrison, J. C.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Magann, E. F.
Right arrow Articles by Chauhan, S. P.
Right arrow Articles by Martin, J. N., Jr
Right arrow Articles by Whitworth, N. S.
Right arrow Articles by Morrison, J. C.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati  
What's this?
Journal of the Society for Gynecologic Investigation, Vol. 2, No. 4, 609-613 (1995)
DOI: 10.1177/107155769500200405

Ultrasonic Assessment of the Amniotic Fluid Volume in Diamniotic Twins

Everett F. Magann, MD

Suneet P. Chauhan, MD

James N. Martin, Jr, MD

Neil S. Whitworth, PhD

John C. Morrison, MD

Department of Obstetrics and Gynecology, University of Mississippi Medical Center, Jackson, Mississippi

Objective: We sought to determine amniotic fluid (AF) volume in diamniotic twin gestations and to relate these findings to estimates using standard ultrasonic techniques.

Methods: In this prospective study, AF volume in 45 diamniotic twin gestations at 27-38 weeks was assessed by sonography using the largest vertical pocket technique, the AF index, and the two-diameter pocket method. After the three different sonographic estimations of AF volume, the true amount of AF was determined using amniocentesis and a dye-dilution technique.

Results: The individual sac AF volume was less than 500 mL in 35 amniotic cavities, 500-2000 mL in 48 sacs, and greater than 2000 mL in seven. Individual AF volume between 500 and 2000 mL was correctly predicted by sonographic use of the largest vertical pocket in 47 of 48 patients (98%), the AF index in 47 of 48 (98%), and the two-diameter pocket method in 39 of 48 (81%). Estimation of AF volume less than 500 mL was significantly more accurate using the two-diameter pocket method compared with either the AF index (P = .015) or the largest vertical pocket technique (P < .0001).

Conclusions: Currently available ultrasonic techniques to assess mid-range AF volume (500-2000 mL) in twin pregnancy are very accurate (81-98%). Oligohydramnios (less than 500 mL) is poorly identified by any sonographic method.

Key Words: Twins • ultrasound • amniotic fluid volume


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati    What's this?