First and second trimester ultrasound assessment of gestational age Journal Article
| Authors: | Kalish, R. B.; Thaler, H. T.; Chasen, S. T.; Gupta, M.; Berman, S. J.; Rosenwaks, Z.; Chervenak, F. A. |
| Article Title: | First and second trimester ultrasound assessment of gestational age |
| Abstract: | The purpose of this study was to evaluate and compare the accuracy of first- and second-trimester ultrasound assessment of fetal age. Differences between ultrasound estimated gestational age and true gestational age were calculated between 11 to 14 weeks of gestation and 18 to 22 weeks of gestation for singleton, twin, and triplet pregnancies that were conceived by in vitro fertilization. One hundred four singleton pregnancies, 81 twin pregnancies, and 33 triplet pregnancies were included. First trimester ultrasound estimates overestimated gestational age by a mean (± SEM) of 1.3 ± 0.2 days (P <. 0001) for singleton pregnancies, 1.4 ± 0.2 days (P <. 0001) for twin pregnancies, and 0.8 ± 0.4 days (P =. 027) for triplet pregnancies. Second trimester estimates were underestimated by a mean of -0.1 ± 0.4 days (P =. 87) for singletons, -0.6 ± 0.3 days (P =. 083) for twins, and -0.6 ± 0.5 days (p = 0.21) for triplets. Ultrasound assessment of gestational age is very accurate and is marginally better in the first trimester compared with the second. © 2004 Elsevier Inc. All rights reserved. |
| Keywords: | controlled study; retrospective studies; conference paper; diagnostic accuracy; sensitivity and specificity; ultrasound; gestational age; echography; pregnancy; fertilization in vitro; multiple pregnancy; calculation; in vitro fertilization; twin pregnancy; first trimester pregnancy; fetus monitoring; twins; ultrasonography, prenatal; humans; human; female; priority journal; second trimester pregnancy; pregnancy trimester, first; pregnancy trimester, second; triplets |
| Journal Title: | American Journal of Obstetrics and Gynecology |
| Volume: | 191 |
| Issue: | 3 |
| ISSN: | 0002-9378 |
| Publisher: | Elsevier Inc. |
| Date Published: | 2004-09-01 |
| Start Page: | 975 |
| End Page: | 978 |
| Language: | English |
| DOI: | 10.1016/j.ajog.2004.06.053 |
| PROVIDER: | scopus |
| PUBMED: | 15467575 |
| DOI/URL: | |
| Notes: | Presented at the 24th Annual Meeting of the Society for Maternal Fetal Medicine; 2004 Feb 2-7; New Orleans, LA -- Cited By (since 1996):35 -- Export Date: 16 June 2014 -- CODEN: AJOGA -- Source: Scopus |
