Ultrasonic fetal weight estimation: Analysis of inter‐ and intra‐observer variability
- 1 October 1993
- journal article
- research article
- Published by Wiley in Journal of Clinical Ultrasound
- Vol. 21 (8), 515-519
- https://doi.org/10.1002/jcu.1870210808
Abstract
Standard ultrasound measurements were performed by two observers in 40 third‐trimester fetuses. Observers were blinded to the results of the meaurements. Estimated fetal weight (EFW) was calculated using two published formulae. The intra‐observer standard deviation for EFW, assessed using one‐way analysis of variance, was <75 g for both observers. The 95% prediction intervals for inter‐observer comparisons of EFW, calculated using the limits of agreement method, were − 187.3 g to 139.8 g, and − 159.9 g to 124.3 g, using the two formulae. The results suggest that measurements of EFW are reproducible. The prediction interval is comparable to the weekly fetal weight increment in normal fetuses. © 1993 John Wiley & Sons, Inc.Keywords
This publication has 17 references indexed in Scilit:
- A comparison of three methods of assessing inter-observer variation applied to ultrasonic fetal measurement in the third trimesterBJOG: An International Journal of Obstetrics and Gynaecology, 1989
- A comparison of three methods of assessing interobserver variation applied to measurement of the symphysis-fundal heightBJOG: An International Journal of Obstetrics and Gynaecology, 1989
- Sonographic estimation of fetal weight and Doppler analysis of umbilical artery velocimetry in the prediction of intrauterine growth retardation: A prospective studyAmerican Journal of Obstetrics and Gynecology, 1988
- The Evaluation of the Methods Used in the Diagnosis of Intrauterine Growth RetardationObstetrical & Gynecological Survey, 1986
- STATISTICAL METHODS FOR ASSESSING AGREEMENT BETWEEN TWO METHODS OF CLINICAL MEASUREMENTThe Lancet, 1986
- Estimation of fetal weight with the use of head, body, and femur measurements—A prospective studyAmerican Journal of Obstetrics and Gynecology, 1985
- Sonographic estimation of fetal weight. The value of femur length in addition to head and abdomen measurements.Radiology, 1984
- Sonographic abdominal circumference: Dynamic versus static imagingAmerican Journal of Obstetrics and Gynecology, 1981
- The estimation of fetal weight by computer-assisted analysisAmerican Journal of Obstetrics and Gynecology, 1977
- THE ASSESSMENT OF FETAL GROWTHBJOG: An International Journal of Obstetrics and Gynaecology, 1968