Quantitative assessment of gestational sac shape: the gestational sac shape score
نویسندگان
چکیده
منابع مشابه
Quantitative assessment of gestational sac shape: the gestational sac shape score.
OBJECTIVE To develop a quantitative method for characterizing gestational sac shape. METHODS Twenty first-trimester gestational sacs in normal pregnancies were studied with three-dimensional (3D) ultrasonography. The 3D coordinates of surface-point sets were obtained for each sac using 30-, 15- and six-slice sampling. Cubic spline interpolation was used with the 15- and six-slice surface-poin...
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One hundred and eighty gestational sac (GS) measurements by ultrasound echography were performed on 132 healthy pregnant women with an accurate gestational age of between five and twelve weeks. Their prenatal courses were uneventful and they delivered of babies appropriate for dates at term. The GS longest diameter in longitudinal section (LGS), the GS longest diameter making perpendicularity t...
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The development of ultrasound technology allows us to see the structure and development of the fetus directly. Crown-Rump Length (CRL) and mean diameter of gestational sac (MSD) can be used to determine the age of the fetus. Both parameters are useful for measuring different aspects of the first trimester of pregnancy. This study proposes a method to obtain those parameter values automatically ...
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OBJECTIVES To construct normal ranges for embryonic crown-rump length (CRL), heart rate (HR), gestational sac diameter (GSD) and yolk sac diameter (YSD) at 6-10 weeks of gestation. METHODS We examined 4,698 singleton pregnancies with ultrasound measurements of CRL, HR, GSD and YSD at 6-10 weeks and CRL at 11-13 weeks resulting in the live birth after 36 weeks of phenotypically normal neonates...
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ژورنال
عنوان ژورنال: Ultrasound in Obstetrics and Gynecology
سال: 2007
ISSN: 0960-7692,1469-0705
DOI: 10.1002/uog.3994