Back to Search
Start Over
The ultrasonic assessment of discordant growth in twin pregnancies.
- Source :
-
Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology [Ultrasound Obstet Gynecol] 1992 Jan 01; Vol. 2 (1), pp. 30-4. - Publication Year :
- 1992
-
Abstract
- Discordant fetal growth, as defined by an intertwin weight difference (calculated as a percentage of the weight of the larger twin) of 20% or more, is associated with an increased perinatal mortality and morbidity. In this study, the accuracy of ultrasound estimation of fetal weight by abdominal circumference and biparietal diameter measurements in 107 twin pregnancies was assessed. Discordant growth greater than 20% as measured by ultrasound was found to have a sensitivity of 5-25%, a specificity of 87-95%, a positive predictive value of 12-43% and a negative predictive value of 80-85% at gestations ranging from 28 weeks to term. ROC calculations showed that changes in the discordance level used did not improve the value of the test. These results indicate that ultrasound measurement of fetal weight alone cannot be used accurately to assess discordant growth in twin pregnancies.<br /> (Copyright 1992 International Society of Ultrasound in Obstetrics and Gynecology)
Details
- Language :
- English
- ISSN :
- 0960-7692
- Volume :
- 2
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology
- Publication Type :
- Academic Journal
- Accession number :
- 12797003
- Full Text :
- https://doi.org/10.1046/j.1469-0705.1992.02010030.x