Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology
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Ultrasound Obstet Gynecol · Feb 2009
Fetal crown-rump length and estimation of gestational age in an ethnic Chinese population.
To develop a sonographic dating formula based on fetal crown-rump length (CRL) in a Hong Kong Chinese population, quantify its systematic prediction error and compare its performance with established dating formulae. ⋯ We have derived a formula suitable for the dating of naturally conceived pregnancies between 6 and 15 weeks of gestation that has no systematic prediction error (the 95% CI of mean difference between predicted and menstrual age included zero), comparing favorably with established CRL dating formulae.
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Ultrasound Obstet Gynecol · Feb 2009
Role of three-dimensional power Doppler in the antenatal diagnosis of placenta accreta: comparison with gray-scale and color Doppler techniques.
To assess the role of three-dimensional (3D) power Doppler in the antenatal diagnosis of placenta accreta and compare its diagnostic performance with gray-scale and color Doppler ultrasonography. ⋯ 3D power Doppler may be useful as a complementary technique for the antenatal diagnosis or exclusion of placenta accreta.