Effect of amniotic fluid volume on ultrasonic fetal weight estimation
| Autor: | William J. Meyer, Daniel W. Gauthier, A Rodriguez, T D Myles, G E Font, Andre Bieniarz |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
medicine.medical_specialty
Amniotic fluid Birth weight Gestational Age Ultrasonography Prenatal Fetus Predictive Value of Tests Pregnancy Amniotic fluid volume Birth Weight Humans Medicine Radiology Nuclear Medicine and imaging In patient Amniotic fluid index Fetal Monitoring Anthropometry Radiological and Ultrasound Technology business.industry Obstetrics Body Weight Infant Newborn Reproducibility of Results Gestational age Fetal weight Amniotic Fluid Gestation Female business |
| Zdroj: | Journal of Ultrasound in Medicine. 14:193-197 |
| ISSN: | 0278-4297 |
| DOI: | 10.7863/jum.1995.14.3.193 |
| Popis: | We evaluated the relationship between the amniotic fluid index and the accuracy of fetal weight estimation using ultrasonography. Six hundred and sixty-four patients, between 20 and 42 weeks' gestational age, who were delivered within 1 week of a sonographic examination were studied. Five formulas for estimating fetal weight also were studied. Systematic and random errors in predicting birth weight were analyzed relative to birth weight and amniotic fluid index. The accuracy of sonographic fetal weight estimation was independent of amniotic fluid index across all gestational ages and birth weights. Each of the five formulas had similar error percentages, and no significant differences were detected. Predicted fetal weight was significantly underestimated with each of the formulas studied, a finding that was also independent of birth weight and amniotic fluid index. We conclude that ultrasonography can be used reliably to estimate fetal weight in patients with altered amniotic fluid volumes. |
| Databáze: | OpenAIRE |
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