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Second‐trimester measurements of placental volume by three‐dimensional ultrasound to predict small‐for‐gestational‐age infants
Author(s) -
Hafner E.,
Philipp T.,
Schuchter K.,
DillingerPaller B.,
Philipp K.,
Bauer P.
Publication year - 1998
Publication title -
ultrasound in obstetrics and gynecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.202
H-Index - 141
eISSN - 1469-0705
pISSN - 0960-7692
DOI - 10.1046/j.1469-0705.1998.12020097.x
Subject(s) - medicine , obstetrics , gestational age , gestation , birth weight , singleton , ultrasound , logistic regression , small for gestational age , obstetrics and gynaecology , third trimester , pregnancy , radiology , genetics , biology
Objective The objective of this study was to investigate the value of second‐trimester three‐dimensional sonographic placental volume measurements to predict infants who are below the 10th Gentile for birth weight. Subjects and methods Placental volume measurements were performed using three‐dimensional ultrasound in 382 women with normal singleton pregnancies at 16–23 weeks' gestation. Logistic multivariate regression consisting of variables considered to influence birth weight was used to predict infants with a birth weight below the 10th centile from the placental volume measurements. Results Prognostic influence could be shown for placental volume ( p ≤ 0.0001), gestational week at the time of measurement ( p = 0.0002) and maternal weight at the time of registration ( p = 0.0025). Values for specificity and sensitivity achieved by choosing an ‘optimal’ cut‐off point of 0.16 for the estimation probability for a small‐for‐gestational‐age (SGA) infant were low at 82.5% and 52.5%, respectively. Conclusions Three‐dimensional sonograpbic measurement of the placental volume alone is not a satisfactory technique for predicting SGA infants. Copyright © 1998 International Society of Ultrasound in Obstetrics and Gynecology