Document Detail

Does the 10-MHz transvaginal transducer improve the diagnostic certainty that an intrauterine fluid collection is a true gestational sac?
MedLine Citation:
PMID:  10440785     Owner:  NLM     Status:  MEDLINE    
PURPOSE: We studied whether a 10-MHz transvaginal transducer improves the diagnostic certainty that a small intrauterine fluid collection is a true gestational sac. METHODS: Over a 6-week period, women who presented with a positive pregnancy test and a fluid collection (devoid of any characteristics such as yolk sac or fetal pole) in the uterus seen with a standard 6-7-MHz transvaginal transducer were entered in the study. The patients were immediately rescanned with a 10-MHz transvaginal probe, and characteristics of the fluid collection using this probe were noted. Specifically, the visualization of a yolk sac or the intradecidual or double decidual sign was considered an objective improvement in the certainty that the fluid collection was a gestational sac. RESULTS: Twelve patients presented with a positive pregnancy test and a fluid collection in the uterus seen with a 6-7-MHz probe. Eight of these fluid collections were smaller than 1 cm in mean diameter, and all 8 of these patients had an objective improvement in the diagnosis of an intrauterine pregnancy using the 10-MHz probe. The other 4 patients had fluid collection 1-2 cm in mean diameter seen at 6-7 MHz. The 10-MHz probe improved the diagnostic confidence in 2 of these 4 patients. CONCLUSIONS: In patients with early pregnancies who have questionable gestational sacs on sonography with standard 6-7-MHz transducers, the 10-MHz probe improves the diagnostic confidence of the presence of an intrauterine gestational sac.
B R Benacerraf; T D Shipp; B Bromley
Related Documents :
3416825 - Vasopressin metabolism in the amniotic sac of the fetal guinea pig.
9639345 - Site of catecholamine modulation of feto-maternal electric potential difference in the ...
15927085 - Longitudinal assessment of pcbs and chlorinated pesticides in pregnant women from weste...
2386135 - Effect of maternal-fetal movement on concentration of cells obtained at genetic amnioce...
16213845 - Comparison of the sperm aneuploidy rate in severe oligozoospermic and oligozoospermic m...
22361975 - Obstructive sleep apnea and pregnancy: the effect on perinatal outcomes.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of clinical ultrasound : JCU     Volume:  27     ISSN:  0091-2751     ISO Abbreviation:  J Clin Ultrasound     Publication Date:  1999 Sep 
Date Detail:
Created Date:  1999-09-23     Completed Date:  1999-09-23     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0401663     Medline TA:  J Clin Ultrasound     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  374-7     Citation Subset:  IM    
Copyright Information:
Copyright 1999 John Wiley & Sons, Inc.
Department of Obstetrics and Gynecology, Massachusetts General Hospital, 32 Fruit Street, Boston, Massachusetts 02114, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Diagnosis, Differential
Pregnancy Tests
Pregnancy, Ectopic / ultrasonography
Ultrasonography, Prenatal / instrumentation*
Yolk Sac / ultrasonography*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Sonographic features of incidentally detected, small, nonpalpable ovarian dermoids.
Next Document:  Prenatal sonographic diagnosis of VATER association.