[Biometry 2000. Fetal growth charts by the French College of fetal ultrasonography and the Inserm U 155].
OBJECTIVE
The aim of Biometry 2000 was to establish reliable sonographic fetal auxology reference charts for biparietal diameter, head circumference, abdominal diameter, abdominal circumference and femur length.


METHODS
A prospective multicentric longitudinal and transversal study was carried out.


METHODS
The data of this study were obtained from 35,456 scans recorded in 10,043 women for a period of one year.


METHODS
Sonographic measurements were performed using a single method for each parameter. Twins and unknown gestational ages were not included. No exclusions were made for small-for-age, congenital malformations or any event during pregnancy. Assuming measurements have a normal distribution, centiles were calculated after polynomial regression models from mean and standard deviation according to gestational age in exact weeks from last menstrual period.


RESULTS
A total of 32,584 fetal biparietal diameters, 20,400 direct cephalic circumferences, 31,790 transverse abdominal diameters, 21,562 direct abdominal circumferences and 30,960 femur lengths were obtained. Fetal growth charts with means, standard deviations and centiles are presented.


CONCLUSIONS
The multicentric study, Biometry 2000, has established sonographic fetal charts derived from a large sample of scans and unselected pregnant women assuming a normal distribution.
Département d'échographie, CHU Bichat-Claude-Bernard, Paris, France.
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Créquat
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M
Duyme
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Brodaty
D000005:Abdomen / Q000000981:diagnostic imaging / Q000196:embryology; D001699:Biometry; D002508:Cephalometry; D005314:Embryonic and Fetal Development; D005260:Female; D005269:Femur / Q000000981:diagnostic imaging / Q000196:embryology; D005865:Gestational Age; D006801:Humans; D008137:Longitudinal Studies; D011247:Pregnancy; D011446:Prospective Studies; D012016:Reference Values; D016216:Ultrasonography, Prenatal