The assessment of prenatal age from the crown‐rump length determined ultrasonically

1 April 1977

journal article
research article
Published by Wiley in Journal of Anatomy

Vol. 148 (4) , 555-560
https://doi.org/10.1002/aja.1001480410

Abstract

Crown-rump lengths determined ultrasonically in vivo and in utero in cases of known postovulatory age (33–86 days) agree well with those in length/age tables in current embryological usage. Within the embryonic period proper, however, for a given age, the ultrasonic lengths are usually 1 to 5 mm longer than those of fixed specimens. The probable reasons for this are discussed.

This publication has 8 references indexed in Scilit:

THE PREDICTION OF DELIVERY DATE BY ULTRASONIC MEASUREMENT OF FETAL CROWN‐RUMP LENGTH
BJOG: An International Journal of Obstetrics and Gynaecology, 1977
THE ULTRASONIC MEASUREMENT OF FETAL CROWN‐RUMP LENGTH AS A METHOD OF ASSESSING GESTATIONAL AGE
BJOG: An International Journal of Obstetrics and Gynaecology, 1976
A CRITICAL EVALUATION OF SONAR “CROWN‐RUMP LENGTH” MEASUREMENTS
BJOG: An International Journal of Obstetrics and Gynaecology, 1975
Sonar Measurement of Fetal Crown-Rump Length as Means of Assessing Maturity in First Trimester of Pregnancy
BMJ, 1973
Analysis of gestational interval
American Journal of Obstetrics and Gynecology, 1967
DURATION OF PREGNANCY AND POSTMATURITY
JAMA, 1952
The shrinkage of embryos in the processes preparatory to sectioning
The Anatomical Record, 1921
On measuring human embryos
The Anatomical Record, 1907