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Estimation of gestational age from measurements of fetal long bones.
Author(s) -
Jeanty P,
Rodesch F,
Delbeke D,
Dumont J E
Publication year - 1984
Publication title -
journal of ultrasound in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 91
eISSN - 1550-9613
pISSN - 0278-4297
DOI - 10.7863/jum.1984.3.2.75
Subject(s) - medicine , gestational age , fetus , obstetrics , estimation , crown rump length , pregnancy , fetal monitoring , first trimester , genetics , management , economics , biology
The general practice of using fetal long bone growth charts to derive gestational age does not yield mathematically valid results. The authors tried to calculate gestational age from the lengths of long bones (femur, humerus, tibia, ulna) from 12 to 40 weeks of gestation. The combined use of the four bones allows a good estimation of gestational age that may be useful should the biparietal diameter measurement be unreliable, unobtainable, or abnormal.