Pregnant women at 32-36 weeks gestational age with sure gestational dating (based in both last menstrual period and dating ultrasound) and otherwise normal singleton pregnancy will be recruited. Ultrasonographic estimation of gestational age using combined transcerebellar diameter and placental thickness will be compared to the actual estimated gestational age.
Study Type
OBSERVATIONAL
Enrollment
100
Using SAMSUNG H60 convex probe 2-8 MHz Machine by the same sonographer, trans-cerebellar diameter is identified by obtaining an oblique view through posterior fossa that included visualization of midline thalamus, cerebellar hemispheres and cisterna magna.
Using SAMSUNG H60 convex probe 2-8 MHz Machine by the same sonographer, placental thickness will be measured at the level of the umbilical cord insertion excluding the myometrium and sub-placental veins
Ain Shams Maternity Hospital
Cairo, Abbsia, Egypt
RECRUITINGConcordance between estimated gestational age and combined transcerebellar diameter and placental thickness estimation
Concordance between the estimated gestational age using last menstrual period and dating ultrasound; and that estimated using combination of transcerebellar diameter and placental thickness
Time frame: 32-36 weeks gestational age
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