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Comparison of pregnancy‐specific β 1 ‐glycoprotein (SP 1 ) and ultrasound in predicting the date of delivery
Author(s) -
NAIEM A.,
BERSINGER N. A.,
KELLER P. J.,
SCHNEIDER H.
Publication year - 1988
Publication title -
bjog: an international journal of obstetrics and gynaecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.157
H-Index - 164
eISSN - 1471-0528
pISSN - 1470-0328
DOI - 10.1111/j.1471-0528.1988.tb06838.x
Subject(s) - crown rump length , ultrasound , pregnancy , gestation , obstetrics , medicine , gynecology , glycoprotein , gestational period , biology , radiology , microbiology and biotechnology , first trimester , genetics
Summary. The accuracy of ultrasound measurements (crown‐rump length and gestational sac diameter) and the serum concentration of pregnancy‐specific β 1 ‐glycoprotein (SP 1 ) in the prediction of the date of birth was analysed in a study population of 94 patients. When measured before 8 weeks after the last menstrual period (LMP) the serum concentration of SP 1 , was found to be a good predictor of the expected date of delivery and a good alternative to ultrasound, but it was of limited use when determined at a later gestation.