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New charts for ultrasound dating of pregnancy
Author(s) -
Altman D. G.,
Chitty L. S.
Publication year - 1997
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.1469-0705.1997.10030174.x
Subject(s) - medicine , obstetrics and gynaecology , obstetrics , ultrasound , statistical analysis , transvaginal ultrasound , medical physics , gynecology , pregnancy , statistics , radiology , genetics , mathematics , biology
We describe new charts and tables for dating pregnancies derived from data collected in a study designed to enable the construction of these and charts of fetal size. This was a prospective study in which 663 fetuses seen in the routine ultrasound clinic in a London teaching hospital were scanned once only for the purpose of this study. We discuss the statistical methodology in detail and compare the new charts with other published charts. We suggest that the differences seen may be due to variation in study methodology. Copyright © 1997 International Society of Ultrasound in Obstetrics and Gynecology